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https://chinastandards.org/standards/gb-t-47974-2-2026 2026-09-07T23:10:18.053Z weekly 1 https://chinastandards.org/standards/gb-t-32555-2026 2026-09-08T10:34:32.440Z weekly 1 https://chinastandards.org/standards/gb-t-47970-2026 2026-09-07T23:10:18.053Z weekly 1 https://chinastandards.org/standards/gb-t-47927-2026 2026-09-08T08:21:05.039Z weekly 1 https://chinastandards.org/standards/gb-t-17870-2026 2026-09-08T08:20:49.526Z weekly 1 https://chinastandards.org/standards/gb-t-14358-2026 2026-09-07T23:09:56.330Z weekly 1 https://chinastandards.org/standards/gb-t-38216-7-2026 2026-09-08T10:33:29.595Z weekly 1 https://chinastandards.org/standards/gb-t-48044-4-2026 2026-09-07T23:10:18.053Z weekly 1 https://chinastandards.org/standards/gb-t-48018-2026 2026-09-07T23:10:18.053Z weekly 1 https://chinastandards.org/standards/gb-t-14153-2026 2026-09-07T23:09:56.330Z weekly 1 https://chinastandards.org/standards/gb-t-38216-6-2026 2026-09-08T08:21:03.087Z weekly 1 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https://chinastandards.org/standards/gb-t-45275-2025 2026-09-08T16:33:08.473Z weekly 1 https://chinastandards.org/standards/gb-t-45349-2025 2026-09-08T11:06:02.122Z weekly 1 https://chinastandards.org/standards/gb-t-45288-1-2025 2026-09-08T00:16:07.563Z weekly 1 https://chinastandards.org/standards/gb-t-45281-2025 2026-09-08T16:36:28.160Z weekly 1 https://chinastandards.org/standards/gb-t-22211-2025 2026-09-07T23:36:56.227Z weekly 1 https://chinastandards.org/standards/gb-t-45288-2-2025 2026-09-08T00:16:01.827Z weekly 1 https://chinastandards.org/standards/gb-t-16702-3-2025 2026-09-08T06:48:28.244Z weekly 1 https://chinastandards.org/standards/gb-t-43018-2-2025 2026-09-08T16:33:04.463Z weekly 1 https://chinastandards.org/standards/gb-t-45344-2025 2026-09-08T11:06:02.121Z weekly 1 https://chinastandards.org/standards/gb-t-45282-2025 2026-09-08T16:33:06.657Z weekly 1 https://chinastandards.org/standards/gb-t-45419-2025 2026-09-08T16:36:38.535Z weekly 1 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https://chinastandards.org/standards/gb-t-4698-29-2024 2026-09-08T16:39:23.202Z weekly 1 https://chinastandards.org/standards/gb-t-44915-2024 2026-09-08T10:56:17.830Z weekly 1 https://chinastandards.org/standards/gb-t-45057-2024 2026-09-08T18:46:41.748Z weekly 1 https://chinastandards.org/standards/gb-19880-2024 2026-09-08T09:28:13.131Z weekly 1 https://chinastandards.org/standards/gb-t-31901-2024 2026-09-08T17:17:58.040Z weekly 1 https://chinastandards.org/standards/gb-t-45097-1-2024 2026-09-08T10:12:28.074Z weekly 1 https://chinastandards.org/standards/gb-t-27793-2024 2026-09-07T23:37:40.639Z weekly 1 https://chinastandards.org/standards/gb-z-44946-2024 2026-09-09T09:28:16.176Z weekly 1 https://chinastandards.org/standards/gb-t-44910-2024 2026-09-08T10:56:19.220Z weekly 1 https://chinastandards.org/standards/gb-t-21369-2024 2026-09-08T18:46:40.445Z weekly 1 https://chinastandards.org/standards/gb-16809-2024 2026-09-08T07:11:31.897Z weekly 1 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https://chinastandards.org/standards/gb-t-44847-2024 2026-09-08T00:15:47.716Z weekly 1 https://chinastandards.org/standards/gb-t-25728-2024 2026-09-09T07:22:15.873Z weekly 1 https://chinastandards.org/standards/gb-t-20842-2024 2026-09-08T09:04:30.528Z weekly 1 https://chinastandards.org/standards/gb-t-37719-4-2024 2026-09-10T00:56:36.065Z weekly 1 https://chinastandards.org/standards/gb-t-20977-2024 2026-09-08T19:24:41.238Z weekly 1 https://chinastandards.org/standards/gb-t-35610-2024 2026-09-08T10:10:00.182Z weekly 1 https://chinastandards.org/standards/gb-t-42125-4-2024 2026-09-07T23:47:54.894Z weekly 1 https://chinastandards.org/standards/gb-t-20154-2024 2026-09-08T09:01:14.280Z weekly 1 https://chinastandards.org/standards/gb-t-44792-2024 2026-09-08T10:53:00.887Z weekly 1 https://chinastandards.org/standards/gb-t-42707-2-2024 2026-09-08T10:22:38.961Z weekly 1 https://chinastandards.org/standards/gb-t-44659-3-2024 2026-09-08T00:15:40.291Z weekly 1 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https://chinastandards.org/standards/gb-t-1361-2024 2026-09-08T02:41:30.686Z weekly 1 https://chinastandards.org/standards/gb-t-4701-13-2024 2026-09-08T00:16:31.541Z weekly 1 https://chinastandards.org/standards/gb-t-43900-2024 2026-09-10T02:33:53.805Z weekly 1 https://chinastandards.org/standards/gb-t-17241-1-2024 2026-09-08T09:19:45.216Z weekly 1 https://chinastandards.org/standards/gb-t-23561-11-2024 2026-09-09T06:40:31.877Z weekly 1 https://chinastandards.org/standards/gb-t-43971-2024 2026-09-08T10:35:41.429Z weekly 1 https://chinastandards.org/standards/gb-t-43866-2024 2026-09-10T02:33:55.807Z weekly 1 https://chinastandards.org/standards/gb-t-43893-2024 2026-09-09T20:34:22.363Z weekly 1 https://chinastandards.org/standards/gb-t-43865-2024 2026-09-10T02:33:56.692Z weekly 1 https://chinastandards.org/standards/gb-t-43843-2024 2026-09-10T02:33:58.689Z weekly 1 https://chinastandards.org/standards/gb-t-44000-2024 2026-09-08T10:37:41.925Z weekly 1 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https://chinastandards.org/standards/gb-t-25632-2024 2026-09-08T19:36:21.993Z weekly 1 https://chinastandards.org/standards/gb-t-43957-2024 2026-09-08T10:35:38.821Z weekly 1 https://chinastandards.org/standards/gb-t-43741-2024 2026-09-08T10:30:32.613Z weekly 1 https://chinastandards.org/standards/gb-t-3880-3-2024 2026-09-08T11:15:45.991Z weekly 1 https://chinastandards.org/standards/gb-t-15115-2024 2026-09-08T06:43:31.283Z weekly 1 https://chinastandards.org/standards/gb-t-33488-5-2024 2026-09-10T02:34:00.347Z weekly 1 https://chinastandards.org/standards/gb-t-43966-2024 2026-09-09T20:24:20.571Z weekly 1 https://chinastandards.org/standards/gb-t-33352-2024 2026-09-10T02:34:00.938Z weekly 1 https://chinastandards.org/standards/gb-t-43888-2024 2026-09-08T00:14:58.356Z weekly 1 https://chinastandards.org/standards/gb-t-43779-2024 2026-09-09T20:02:01.240Z weekly 1 https://chinastandards.org/standards/gb-t-32285-2024 2026-09-10T02:34:01.517Z weekly 1 https://chinastandards.org/standards/gb-t-43746-2-2024 2026-09-08T10:32:00.837Z weekly 1 https://chinastandards.org/standards/gb-t-43874-2024 2026-09-08T10:33:44.620Z weekly 1 https://chinastandards.org/standards/gb-t-43898-2024 2026-09-08T00:14:57.269Z weekly 1 https://chinastandards.org/standards/gb-t-5762-2024 2026-09-07T23:10:18.053Z weekly 1 https://chinastandards.org/standards/gb-t-19544-2024 2026-09-08T18:58:27.414Z weekly 1 https://chinastandards.org/standards/gb-t-1503-2024 2026-09-08T09:55:57.423Z weekly 1 https://chinastandards.org/standards/gb-t-32270-2024 2026-09-10T02:34:02.090Z weekly 1 https://chinastandards.org/standards/gb-t-4137-2024 2026-09-08T00:13:01.116Z weekly 1 https://chinastandards.org/standards/gb-t-29603-2024 2026-09-10T02:34:03.458Z weekly 1 https://chinastandards.org/standards/gb-t-17215-301-2024 2026-09-08T08:27:16.138Z weekly 1 https://chinastandards.org/standards/gb-t-43696-2024 2026-09-09T20:45:05.850Z weekly 1 https://chinastandards.org/standards/gb-t-43908-2024 2026-09-09T20:18:26.995Z weekly 1 https://chinastandards.org/standards/gb-t-4103-18-2024 2026-09-09T20:18:27.926Z weekly 1 https://chinastandards.org/standards/gb-t-29335-2024 2026-09-10T02:34:04.000Z weekly 1 https://chinastandards.org/standards/gb-t-8177-2024 2026-09-10T02:33:41.496Z weekly 1 https://chinastandards.org/standards/gb-t-43967-2024 2026-09-08T10:35:40.210Z weekly 1 https://chinastandards.org/standards/gb-t-43951-2024 2026-09-08T10:35:39.203Z weekly 1 https://chinastandards.org/standards/gb-t-43975-2024 2026-09-08T10:37:37.769Z weekly 1 https://chinastandards.org/standards/gb-t-43911-2024 2026-09-08T10:33:47.286Z weekly 1 https://chinastandards.org/standards/gb-t-44012-2024 2026-09-08T10:37:43.120Z weekly 1 https://chinastandards.org/standards/gb-t-43895-2024 2026-09-08T00:14:53.948Z weekly 1 https://chinastandards.org/standards/gb-t-43914-2024 2026-09-08T00:14:59.061Z weekly 1 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https://chinastandards.org/standards/gb-t-43887-2024 2026-09-08T17:55:54.223Z weekly 1 https://chinastandards.org/standards/gb-t-44011-1-2024 2026-09-08T10:37:36.104Z weekly 1 https://chinastandards.org/standards/gb-t-43972-2024 2026-09-08T10:35:41.863Z weekly 1 https://chinastandards.org/standards/gb-t-43938-2-2024 2026-09-08T10:35:38.013Z weekly 1 https://chinastandards.org/standards/gb-t-43869-2024 2026-09-08T10:33:45.027Z weekly 1 https://chinastandards.org/standards/gb-t-5324-2024 2026-09-08T00:16:51.955Z weekly 1 https://chinastandards.org/standards/gb-t-43968-2024 2026-09-08T10:35:40.480Z weekly 1 https://chinastandards.org/standards/gb-t-43942-2024 2026-09-08T10:35:37.597Z weekly 1 https://chinastandards.org/standards/gb-t-26027-2024 2026-09-08T10:13:17.864Z weekly 1 https://chinastandards.org/standards/gb-t-43964-2024 2026-09-08T10:35:38.207Z weekly 1 https://chinastandards.org/standards/gb-t-43997-2-2024 2026-09-08T10:37:35.840Z weekly 1 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https://chinastandards.org/standards/gb-t-44003-2024 2026-09-08T00:15:01.205Z weekly 1 https://chinastandards.org/standards/gb-t-43698-2024 2026-09-08T10:30:31.097Z weekly 1 https://chinastandards.org/standards/gb-t-25390-2024 2026-09-08T09:43:18.496Z weekly 1 https://chinastandards.org/standards/gb-t-43929-2024 2026-09-09T20:54:19.137Z weekly 1 https://chinastandards.org/standards/gb-t-26080-2024 2026-09-09T06:39:38.804Z weekly 1 https://chinastandards.org/standards/gb-t-6730-73-2024 2026-09-08T16:33:49.395Z weekly 1 https://chinastandards.org/standards/gb-t-43922-2024 2026-09-08T10:35:33.670Z weekly 1 https://chinastandards.org/standards/gb-t-17241-2-2024 2026-09-08T08:30:11.832Z weekly 1 https://chinastandards.org/standards/gb-t-43949-2024 2026-09-09T20:21:18.986Z weekly 1 https://chinastandards.org/standards/gb-t-4330-2024 2026-09-08T00:14:19.903Z weekly 1 https://chinastandards.org/standards/gb-t-43937-2024 2026-09-08T10:35:37.057Z weekly 1 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https://chinastandards.org/standards/gb-t-14207-2024 2026-09-08T19:36:34.955Z weekly 1 https://chinastandards.org/standards/gb-t-43859-2024 2026-09-08T10:33:43.048Z weekly 1 https://chinastandards.org/standards/gb-t-43851-2024 2026-09-08T10:33:41.984Z weekly 1 https://chinastandards.org/standards/gb-t-43870-2-2024 2026-09-08T10:33:43.969Z weekly 1 https://chinastandards.org/standards/gb-t-4331-2024 2026-09-08T00:14:20.547Z weekly 1 https://chinastandards.org/standards/gb-t-43958-2024 2026-09-09T20:21:24.689Z weekly 1 https://chinastandards.org/standards/gb-t-44007-2024 2026-09-09T20:21:29.937Z weekly 1 https://chinastandards.org/standards/gb-t-43881-2024 2026-09-08T10:33:45.030Z weekly 1 https://chinastandards.org/standards/gb-t-28629-2024 2026-09-08T09:56:30.829Z weekly 1 https://chinastandards.org/standards/gb-t-43909-2024 2026-09-09T20:21:26.465Z weekly 1 https://chinastandards.org/standards/gb-t-43858-2024 2026-09-08T10:33:43.948Z weekly 1 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https://chinastandards.org/standards/gb-t-43753-1-2024 2026-09-08T10:32:01.491Z weekly 1 https://chinastandards.org/standards/gb-t-42442-2-2024 2026-09-10T02:36:15.753Z weekly 1 https://chinastandards.org/standards/gb-t-17822-1-2024 2026-09-08T06:50:54.528Z weekly 1 https://chinastandards.org/standards/gb-t-42793-2024 2026-09-10T02:36:16.510Z weekly 1 https://chinastandards.org/standards/gb-t-43817-2024 2026-09-08T10:32:04.882Z weekly 1 https://chinastandards.org/standards/gb-t-27647-2024 2026-09-08T17:16:51.123Z weekly 1 https://chinastandards.org/standards/gb-t-43765-2024 2026-09-08T10:32:02.572Z weekly 1 https://chinastandards.org/standards/gb-t-42791-2024 2026-09-10T02:36:21.011Z weekly 1 https://chinastandards.org/standards/gb-t-43669-2024 2026-09-09T20:45:01.804Z weekly 1 https://chinastandards.org/standards/gb-t-43758-1-2024 2026-09-10T02:36:22.369Z weekly 1 https://chinastandards.org/standards/gb-t-43743-2024 2026-09-09T20:45:02.845Z weekly 1 https://chinastandards.org/standards/gb-t-19812-7-2024 2026-09-08T18:58:14.156Z weekly 1 https://chinastandards.org/standards/gb-t-43803-2024 2026-09-10T02:36:26.411Z weekly 1 https://chinastandards.org/standards/gb-t-43815-2024 2026-09-09T20:45:03.644Z weekly 1 https://chinastandards.org/standards/gb-t-43808-2024 2026-09-10T02:36:27.058Z weekly 1 https://chinastandards.org/standards/gb-t-43330-2-2024 2026-09-10T02:36:27.642Z weekly 1 https://chinastandards.org/standards/gb-t-43837-2024 2026-09-10T10:26:52.461Z weekly 1 https://chinastandards.org/standards/gb-t-43637-2024 2026-09-10T02:36:28.321Z weekly 1 https://chinastandards.org/standards/gb-t-22919-11-2024 2026-09-08T18:58:11.525Z weekly 1 https://chinastandards.org/standards/gb-t-23897-2024 2026-09-08T17:12:27.654Z weekly 1 https://chinastandards.org/standards/gb-z-29014-5-2024 2026-09-08T11:44:29.242Z weekly 1 https://chinastandards.org/standards/gb-t-30489-2024 2026-09-10T02:36:32.186Z weekly 1 https://chinastandards.org/standards/gb-t-43771-2024 2026-09-09T20:45:04.292Z weekly 1 https://chinastandards.org/standards/gb-t-19635-2024 2026-09-08T10:12:57.705Z weekly 1 https://chinastandards.org/standards/gb-t-43697-2024 2026-09-08T11:11:28.633Z weekly 1 https://chinastandards.org/standards/gb-t-43603-3-2024 2026-09-10T02:36:39.191Z weekly 1 https://chinastandards.org/standards/gb-t-26378-2024 2026-09-08T10:25:52.674Z weekly 1 https://chinastandards.org/standards/gb-t-43711-2024 2026-09-10T02:36:40.028Z weekly 1 https://chinastandards.org/standards/gb-t-18262-2024 2026-09-08T10:26:11.956Z weekly 1 https://chinastandards.org/standards/gb-t-20625-2024 2026-09-08T09:02:56.629Z weekly 1 https://chinastandards.org/standards/gb-t-21037-2024 2026-09-08T19:24:37.504Z weekly 1 https://chinastandards.org/standards/gb-t-43676-2024 2026-09-08T08:16:02.134Z weekly 1 https://chinastandards.org/standards/gb-t-43639-2024 2026-09-10T02:36:42.702Z weekly 1 https://chinastandards.org/standards/gb-t-43654-2024 2026-09-08T00:14:37.716Z weekly 1 https://chinastandards.org/standards/gb-t-1464-2024 2026-09-09T07:09:20.356Z weekly 1 https://chinastandards.org/standards/gb-t-43641-2024 2026-09-10T02:36:45.412Z weekly 1 https://chinastandards.org/standards/gb-t-20042-6-2024 2026-09-08T09:34:24.493Z weekly 1 https://chinastandards.org/standards/gb-t-29899-2024 2026-09-10T02:36:47.970Z weekly 1 https://chinastandards.org/standards/gb-t-43690-2024 2026-09-08T00:14:40.053Z weekly 1 https://chinastandards.org/standards/gb-t-23561-8-2024 2026-09-09T06:40:04.918Z weekly 1 https://chinastandards.org/standards/gb-t-43840-2024 2026-09-10T10:26:53.521Z weekly 1 https://chinastandards.org/standards/gb-t-37364-4-2024 2026-09-10T02:36:50.509Z weekly 1 https://chinastandards.org/standards/gb-t-37364-3-2024 2026-09-10T02:36:51.227Z weekly 1 https://chinastandards.org/standards/gb-t-22802-2024 2026-09-10T00:40:19.012Z weekly 1 https://chinastandards.org/standards/gb-t-22919-9-2024 2026-09-07T23:37:02.578Z weekly 1 https://chinastandards.org/standards/gb-t-43665-2024 2026-09-08T11:31:59.513Z weekly 1 https://chinastandards.org/standards/gb-t-18003-2024 2026-09-07T23:30:26.015Z weekly 1 https://chinastandards.org/standards/gb-t-43716-2024 2026-09-10T02:39:17.033Z weekly 1 https://chinastandards.org/standards/gb-t-21372-2024 2026-09-08T10:27:53.830Z weekly 1 https://chinastandards.org/standards/gb-t-43769-2024 2026-09-08T08:16:03.510Z weekly 1 https://chinastandards.org/standards/gb-t-43667-2024 2026-09-08T11:22:15.608Z weekly 1 https://chinastandards.org/standards/gb-t-43756-2024 2026-09-08T11:03:46.252Z weekly 1 https://chinastandards.org/standards/gb-t-21294-2024 2026-09-08T10:24:06.632Z weekly 1 https://chinastandards.org/standards/gb-t-43809-2024 2026-09-10T10:26:51.271Z weekly 1 https://chinastandards.org/standards/gb-t-18825-2024 2026-09-08T10:23:21.443Z weekly 1 https://chinastandards.org/standards/gb-t-43841-2024 2026-09-10T10:26:54.470Z weekly 1 https://chinastandards.org/standards/gb-t-26382-2024 2026-09-08T10:18:32.742Z weekly 1 https://chinastandards.org/standards/gb-t-26362-2024 2026-09-08T17:21:16.818Z weekly 1 https://chinastandards.org/standards/gb-t-19665-2024 2026-09-08T08:59:48.903Z weekly 1 https://chinastandards.org/standards/gb-t-43785-2024 2026-09-08T08:16:16.806Z weekly 1 https://chinastandards.org/standards/gb-t-43838-2024 2026-09-10T10:26:55.405Z weekly 1 https://chinastandards.org/standards/gb-t-17822-2-2024 2026-09-10T00:37:52.945Z weekly 1 https://chinastandards.org/standards/gb-t-43749-2024 2026-09-08T00:14:46.884Z weekly 1 https://chinastandards.org/standards/gb-t-28952-2024 2026-09-09T07:08:52.996Z weekly 1 https://chinastandards.org/standards/gb-t-43678-2024 2026-09-08T10:30:29.890Z weekly 1 https://chinastandards.org/standards/gb-t-43842-2024 2026-09-10T10:26:56.471Z weekly 1 https://chinastandards.org/standards/gb-t-43726-2024 2026-09-10T02:34:31.183Z weekly 1 https://chinastandards.org/standards/gb-t-43725-2024 2026-09-10T02:34:32.525Z weekly 1 https://chinastandards.org/standards/gb-t-43839-2024 2026-09-10T10:26:57.626Z weekly 1 https://chinastandards.org/standards/gb-t-43880-1-2024 2026-09-10T10:26:48.413Z weekly 1 https://chinastandards.org/standards/gb-t-20384-2024 2026-09-08T18:58:36.032Z weekly 1 https://chinastandards.org/standards/gb-t-43729-2024 2026-09-10T10:26:58.632Z weekly 1 https://chinastandards.org/standards/gb-t-6519-2024 2026-09-08T11:37:53.320Z weekly 1 https://chinastandards.org/standards/gb-t-22849-2024 2026-09-08T10:24:00.452Z weekly 1 https://chinastandards.org/standards/gb-t-43647-2024 2026-09-08T00:14:37.784Z weekly 1 https://chinastandards.org/standards/gb-t-20715-2024 2026-09-09T06:48:14.406Z weekly 1 https://chinastandards.org/standards/gb-t-43735-2024 2026-09-08T00:14:44.309Z weekly 1 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https://chinastandards.org/standards/gb-t-22919-8-2024 2026-09-07T23:37:05.654Z weekly 1 https://chinastandards.org/standards/gb-t-43653-2024 2026-09-08T10:00:24.267Z weekly 1 https://chinastandards.org/standards/gb-t-20478-2024 2026-09-08T19:10:53.380Z weekly 1 https://chinastandards.org/standards/gb-t-43672-2024 2026-09-10T02:34:04.706Z weekly 1 https://chinastandards.org/standards/gb-t-36306-2024 2026-09-07T23:40:36.115Z weekly 1 https://chinastandards.org/standards/gb-t-43794-2024 2026-09-08T10:32:03.915Z weekly 1 https://chinastandards.org/standards/gb-t-43683-1-2024 2026-09-08T09:46:41.246Z weekly 1 https://chinastandards.org/standards/gb-t-43825-2024 2026-09-10T10:26:47.309Z weekly 1 https://chinastandards.org/standards/gb-t-43682-2024 2026-09-10T10:26:59.526Z weekly 1 https://chinastandards.org/standards/gb-t-43706-2024 2026-09-10T10:26:45.294Z weekly 1 https://chinastandards.org/standards/gb-t-31960-12-2024 2026-09-10T02:34:06.028Z weekly 1 https://chinastandards.org/standards/gb-t-32718-2024 2026-09-10T10:26:46.317Z weekly 1 https://chinastandards.org/standards/gb-t-43644-2024 2026-09-10T10:26:44.448Z weekly 1 https://chinastandards.org/standards/gb-t-18247-2-2024 2026-09-08T19:04:45.827Z weekly 1 https://chinastandards.org/standards/gb-t-43734-2024 2026-09-10T10:27:00.703Z weekly 1 https://chinastandards.org/standards/gb-t-11199-2024 2026-09-09T09:17:06.787Z weekly 1 https://chinastandards.org/standards/gb-t-43640-2024 2026-09-08T10:30:28.914Z weekly 1 https://chinastandards.org/standards/gb-t-43753-2-2024 2026-09-08T09:41:27.926Z weekly 1 https://chinastandards.org/standards/gb-t-5856-2024 2026-09-08T11:37:45.298Z weekly 1 https://chinastandards.org/standards/gb-t-22919-10-2024 2026-09-07T23:37:01.421Z weekly 1 https://chinastandards.org/standards/gb-t-43730-2024 2026-09-10T10:27:01.680Z weekly 1 https://chinastandards.org/standards/gb-t-43880-4-2024 2026-09-09T19:33:57.047Z weekly 1 https://chinastandards.org/standards/gb-t-31960-13-2024 2026-09-10T02:34:11.403Z weekly 1 https://chinastandards.org/standards/gb-t-43715-2024 2026-09-10T02:34:12.088Z weekly 1 https://chinastandards.org/standards/gb-t-43748-2024 2026-09-10T10:27:02.871Z weekly 1 https://chinastandards.org/standards/gb-t-38624-3-2024 2026-09-10T02:34:12.731Z weekly 1 https://chinastandards.org/standards/gb-t-43760-2024 2026-09-08T11:31:21.326Z weekly 1 https://chinastandards.org/standards/gb-t-32234-1-2024 2026-09-10T02:34:13.250Z weekly 1 https://chinastandards.org/standards/gb-t-43695-2024 2026-09-10T02:34:13.873Z weekly 1 https://chinastandards.org/standards/gb-t-43799-2024 2026-09-10T02:34:14.442Z weekly 1 https://chinastandards.org/standards/gb-t-43732-2024 2026-09-10T02:34:15.020Z weekly 1 https://chinastandards.org/standards/gb-t-43733-2024 2026-09-10T02:34:15.518Z weekly 1 https://chinastandards.org/standards/gb-t-43753-3-2024 2026-09-09T19:42:09.429Z weekly 1 https://chinastandards.org/standards/gb-t-43590-503-2024 2026-09-10T02:34:22.050Z weekly 1 https://chinastandards.org/standards/gb-t-43787-2024 2026-09-10T02:34:16.113Z weekly 1 https://chinastandards.org/standards/gb-t-43770-2024 2026-09-10T02:34:16.823Z weekly 1 https://chinastandards.org/standards/gb-t-43780-2024 2026-09-10T02:34:17.421Z weekly 1 https://chinastandards.org/standards/gb-t-43590-501-2024 2026-09-10T02:34:21.249Z weekly 1 https://chinastandards.org/standards/gb-t-43821-2024 2026-09-09T19:42:11.032Z weekly 1 https://chinastandards.org/standards/gb-t-43701-2024 2026-09-10T02:34:19.037Z weekly 1 https://chinastandards.org/standards/gb-t-22919-6-2024 2026-09-07T23:31:23.893Z weekly 1 https://chinastandards.org/standards/gb-t-18673-2024 2026-09-10T00:39:33.861Z weekly 1 https://chinastandards.org/standards/gb-t-6383-2024 2026-09-10T10:27:04.359Z weekly 1 https://chinastandards.org/standards/gb-t-43703-2024 2026-09-10T02:34:19.658Z weekly 1 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https://chinastandards.org/standards/gb-t-10335-6-2023 2026-09-08T01:09:55.937Z weekly 1 https://chinastandards.org/standards/gb-t-37400-18-2023 2026-09-09T09:25:12.016Z weekly 1 https://chinastandards.org/standards/gb-t-21679-2023 2026-09-10T09:03:52.427Z weekly 1 https://chinastandards.org/standards/gb-t-26741-2023 2026-09-10T09:03:51.101Z weekly 1 https://chinastandards.org/standards/gb-t-15342-2023 2026-09-10T08:21:44.690Z weekly 1 https://chinastandards.org/standards/gb-t-20186-3-2023 2026-09-10T08:21:43.888Z weekly 1 https://chinastandards.org/standards/gb-t-23519-2023 2026-09-10T08:21:42.959Z weekly 1 https://chinastandards.org/standards/gb-t-25789-2023 2026-09-10T07:33:14.543Z weekly 1 https://chinastandards.org/standards/gb-t-23031-6-2023 2026-09-10T07:33:13.620Z weekly 1 https://chinastandards.org/standards/gb-t-23031-5-2023 2026-09-10T07:33:12.767Z weekly 1 https://chinastandards.org/standards/gb-t-23031-2-2023 2026-09-10T07:33:11.007Z weekly 1 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2026-09-08T06:44:12.470Z weekly 1 https://chinastandards.org/standards/gb-t-32151-16-2023 2026-09-10T10:28:01.723Z weekly 1 https://chinastandards.org/standards/gb-t-43555-2023 2026-09-08T10:30:27.939Z weekly 1 https://chinastandards.org/standards/gb-t-32151-15-2023 2026-09-10T10:28:02.760Z weekly 1 https://chinastandards.org/standards/gb-t-32151-17-2023 2026-09-10T10:28:03.769Z weekly 1 https://chinastandards.org/standards/gb-t-32151-14-2023 2026-09-10T10:28:05.654Z weekly 1 https://chinastandards.org/standards/gb-t-43583-2023 2026-09-08T00:14:32.973Z weekly 1 https://chinastandards.org/standards/gb-t-8077-2023 2026-09-08T11:41:02.410Z weekly 1 https://chinastandards.org/standards/gb-t-32151-13-2023 2026-09-10T10:28:06.971Z weekly 1 https://chinastandards.org/standards/gb-t-43491-2023 2026-09-08T00:14:29.429Z weekly 1 https://chinastandards.org/standards/gb-t-18156-2023 2026-09-08T08:36:14.545Z weekly 1 https://chinastandards.org/standards/gb-t-7679-3-2023 2026-09-08T11:41:00.984Z 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https://chinastandards.org/standards/gb-t-11064-2-2023 2026-09-08T01:28:10.075Z weekly 1 https://chinastandards.org/standards/gb-t-13821-2023 2026-09-08T02:50:09.682Z weekly 1 https://chinastandards.org/standards/gb-t-31866-2023 2026-09-08T11:15:29.375Z weekly 1 https://chinastandards.org/standards/gb-7300-504-2023 2026-09-08T00:51:36.434Z weekly 1 https://chinastandards.org/standards/gb-t-24747-2023 2026-09-08T11:29:15.055Z weekly 1 https://chinastandards.org/standards/gb-t-10815-2023 2026-09-08T01:20:11.760Z weekly 1 https://chinastandards.org/standards/gb-t-22862-2023 2026-09-08T06:59:39.713Z weekly 1 https://chinastandards.org/standards/gb-t-41232-3-2023 2026-09-08T11:15:32.612Z weekly 1 https://chinastandards.org/standards/gb-t-23479-2023 2026-09-08T11:19:30.700Z weekly 1 https://chinastandards.org/standards/gb-t-42700-2023 2026-09-08T10:32:03.237Z weekly 1 https://chinastandards.org/standards/gb-t-42581-2023 2026-09-08T10:16:02.190Z weekly 1 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2026-09-08T00:53:05.207Z weekly 1 https://chinastandards.org/standards/gb-18436-2022 2026-09-08T00:29:30.482Z weekly 1 https://chinastandards.org/standards/gb-7300-1002-2022 2026-09-08T00:47:36.522Z weekly 1 https://chinastandards.org/standards/gb-41731-2022 2026-09-08T00:36:56.735Z weekly 1 https://chinastandards.org/standards/gb-t-41611-2022 2026-09-08T09:48:14.917Z weekly 1 https://chinastandards.org/standards/gb-t-23853-2022 2026-09-10T13:29:06.320Z weekly 1 https://chinastandards.org/standards/gb-t-8719-2022 2026-09-10T13:29:21.390Z weekly 1 https://chinastandards.org/standards/gb-t-19608-2-2022 2026-09-08T11:28:33.387Z weekly 1 https://chinastandards.org/standards/gb-t-26358-2022 2026-09-10T13:31:30.743Z weekly 1 https://chinastandards.org/standards/gb-t-41614-2022 2026-09-10T13:33:57.413Z weekly 1 https://chinastandards.org/standards/gb-t-30133-2022 2026-09-10T13:26:44.783Z weekly 1 https://chinastandards.org/standards/gb-t-26182-2022 2026-09-08T09:37:12.140Z weekly 1 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https://chinastandards.org/standards/gb-t-14361-1-1993 2026-09-10T00:33:12.828Z weekly 1 https://chinastandards.org/standards/gb-t-14361-2-1993 2026-09-10T00:33:13.438Z weekly 1 https://chinastandards.org/standards/gb-t-14368-1993 2026-09-10T00:33:14.105Z weekly 1 https://chinastandards.org/standards/gb-14249-1-1993 2026-09-08T11:00:21.844Z weekly 1 https://chinastandards.org/standards/gb-t-14221-1993 2026-09-10T00:33:07.276Z weekly 1 https://chinastandards.org/standards/gb-t-14234-1993 2026-09-11T18:16:13.342Z weekly 1 https://chinastandards.org/standards/gb-t-14204-1993 2026-09-10T00:33:06.410Z weekly 1 https://chinastandards.org/standards/gb-t-14186-1993 2026-09-11T18:27:50.454Z weekly 1 https://chinastandards.org/standards/gb-t-14175-1993 2026-09-11T18:27:51.501Z weekly 1 https://chinastandards.org/standards/gb-t-14158-1993 2026-09-10T00:33:02.798Z weekly 1 https://chinastandards.org/standards/gb-t-14077-1993 2026-09-10T00:32:56.320Z weekly 1 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https://chinastandards.org/standards/gb-t-13231-1991 2026-09-10T00:31:15.952Z weekly 1 https://chinastandards.org/standards/gb-t-13226-1991 2026-09-10T00:31:14.611Z weekly 1 https://chinastandards.org/standards/gb-t-13227-1991 2026-09-10T00:31:15.187Z weekly 1 https://chinastandards.org/standards/gb-t-13225-1991 2026-09-10T00:31:13.773Z weekly 1 https://chinastandards.org/standards/gb-t-13220-1991 2026-09-10T00:31:13.230Z weekly 1 https://chinastandards.org/standards/gb-t-12993-1991 2026-09-10T00:30:54.273Z weekly 1 https://chinastandards.org/standards/gb-t-13162-1991 2026-09-10T00:31:09.076Z weekly 1 https://chinastandards.org/standards/gb-t-12990-1991 2026-09-10T00:30:52.989Z weekly 1 https://chinastandards.org/standards/gb-t-12992-1991 2026-09-10T00:30:53.678Z weekly 1 https://chinastandards.org/standards/gb-t-13135-1991 2026-09-10T00:31:01.655Z weekly 1 https://chinastandards.org/standards/gb-t-13134-1991 2026-09-10T00:31:01.128Z weekly 1 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https://chinastandards.org/standards/gb-t-12793-1991 2026-09-10T00:30:30.080Z weekly 1 https://chinastandards.org/standards/gb-t-12767-1991 2026-09-10T00:30:28.312Z weekly 1 https://chinastandards.org/standards/gb-t-12742-1991 2026-09-07T23:09:43.530Z weekly 1 https://chinastandards.org/standards/gb-t-13302-1991 2026-09-08T08:16:53.618Z weekly 1 https://chinastandards.org/standards/gb-t-12677-1990 2026-09-10T00:30:13.995Z weekly 1 https://chinastandards.org/standards/gb-t-12679-1990 2026-09-10T00:30:14.844Z weekly 1 https://chinastandards.org/standards/gb-t-12627-1990 2026-09-10T00:30:08.279Z weekly 1 https://chinastandards.org/standards/gb-t-12633-1990 2026-09-10T00:30:09.012Z weekly 1 https://chinastandards.org/standards/gb-t-12634-1990 2026-09-10T00:30:09.916Z weekly 1 https://chinastandards.org/standards/gb-t-12635-1990 2026-09-10T00:30:10.660Z weekly 1 https://chinastandards.org/standards/gb-t-12648-1990 2026-09-10T00:30:12.282Z weekly 1 https://chinastandards.org/standards/gb-t-12636-1990 2026-09-10T00:30:11.423Z weekly 1 https://chinastandards.org/standards/gb-2702-1990 2026-09-10T00:26:38.714Z weekly 1 https://chinastandards.org/standards/gb-t-12601-1990 2026-09-08T02:07:10.926Z weekly 1 https://chinastandards.org/standards/gb-t-12565-1990 2026-09-10T00:30:05.316Z weekly 1 https://chinastandards.org/standards/gb-t-12537-1990 2026-09-08T08:00:23.576Z weekly 1 https://chinastandards.org/standards/gb-t-12534-1990 2026-09-07T23:09:43.530Z weekly 1 https://chinastandards.org/standards/gb-t-12559-1990 2026-09-10T00:30:04.422Z weekly 1 https://chinastandards.org/standards/gb-t-12566-1990 2026-09-10T00:30:05.990Z weekly 1 https://chinastandards.org/standards/gb-12526-1990 2026-09-10T00:24:59.310Z weekly 1 https://chinastandards.org/standards/gb-12525-1990 2026-09-10T00:24:58.747Z weekly 1 https://chinastandards.org/standards/gb-t-12496-5-1999 2026-09-10T00:29:51.483Z weekly 1 https://chinastandards.org/standards/gb-t-12496-17-1999 2026-09-10T00:29:45.261Z weekly 1 https://chinastandards.org/standards/gb-t-2362-1990 2026-09-11T18:27:56.419Z weekly 1 https://chinastandards.org/standards/gb-t-12440-1990 2026-09-10T00:29:37.156Z weekly 1 https://chinastandards.org/standards/gb-t-12436-1990 2026-09-10T00:29:36.350Z weekly 1 https://chinastandards.org/standards/gb-t-12401-1990 2026-09-10T00:29:33.031Z weekly 1 https://chinastandards.org/standards/gb-12379-1990 2026-09-10T00:24:54.603Z weekly 1 https://chinastandards.org/standards/gb-t-12345-1990 2026-09-10T00:29:31.104Z weekly 1 https://chinastandards.org/standards/gb-t-12272-1990 2026-09-10T00:29:28.582Z weekly 1 https://chinastandards.org/standards/gb-t-12275-1990 2026-09-10T00:29:29.248Z weekly 1 https://chinastandards.org/standards/gb-t-12200-1-1990 2026-09-10T00:29:25.158Z weekly 1 https://chinastandards.org/standards/gb-t-12052-1989 2026-09-10T00:29:14.238Z weekly 1 https://chinastandards.org/standards/gb-12073-1989 2026-09-10T00:24:52.327Z weekly 1 https://chinastandards.org/standards/gb-t-12005-8-1989 2026-09-10T00:29:05.870Z weekly 1 https://chinastandards.org/standards/gb-t-12005-6-1989 2026-09-10T00:29:04.557Z weekly 1 https://chinastandards.org/standards/gb-t-12005-2-1989 2026-09-10T00:29:03.932Z weekly 1 https://chinastandards.org/standards/gb-t-12005-7-1989 2026-09-10T00:29:05.271Z weekly 1 https://chinastandards.org/standards/gb-11928-1989 2026-09-10T00:24:51.719Z weekly 1 https://chinastandards.org/standards/gb-t-11901-1989 2026-09-08T08:17:34.145Z weekly 1 https://chinastandards.org/standards/gb-t-11893-1989 2026-09-08T01:49:16.749Z weekly 1 https://chinastandards.org/standards/gb-t-11900-1989 2026-09-10T00:29:01.618Z weekly 1 https://chinastandards.org/standards/gb-11607-1989 2026-09-10T00:24:46.622Z weekly 1 https://chinastandards.org/standards/gb-t-11443-1-1989 2026-09-10T00:28:38.740Z weekly 1 https://chinastandards.org/standards/gb-11410-1989 2026-09-10T00:24:44.473Z weekly 1 https://chinastandards.org/standards/gb-t-1840-1989 2026-09-10T00:39:22.171Z weekly 1 https://chinastandards.org/standards/gb-t-11320-1989 2026-09-10T00:28:35.128Z weekly 1 https://chinastandards.org/standards/gb-t-11085-1989 2026-09-10T00:28:22.281Z weekly 1 https://chinastandards.org/standards/gb-11215-1989 2026-09-10T00:24:42.550Z weekly 1 https://chinastandards.org/standards/gb-11217-1989 2026-09-10T00:24:43.425Z weekly 1 https://chinastandards.org/standards/gb-t-11299-8-1989 2026-09-10T00:28:29.838Z weekly 1 https://chinastandards.org/standards/gb-t-11299-14-1989 2026-09-10T00:28:29.301Z weekly 1 https://chinastandards.org/standards/gb-t-10574-5-2003 2026-09-10T00:27:52.615Z weekly 1 https://chinastandards.org/standards/gb-t-10305-1988 2026-09-10T00:27:48.020Z weekly 1 https://chinastandards.org/standards/gb-t-10240-1988 2026-09-10T00:27:46.182Z weekly 1 https://chinastandards.org/standards/gb-t-10202-1988 2026-09-10T00:27:42.042Z weekly 1 https://chinastandards.org/standards/gb-t-10199-1-1988 2026-09-10T00:27:34.279Z weekly 1 https://chinastandards.org/standards/gb-t-1339-1988 2026-09-10T00:31:23.640Z weekly 1 https://chinastandards.org/standards/gb-t-10226-1988 2026-09-10T00:27:43.830Z weekly 1 https://chinastandards.org/standards/gb-t-10199-2-1988 2026-09-10T00:27:41.226Z weekly 1 https://chinastandards.org/standards/gb-t-10063-1988 2026-09-07T23:09:43.530Z weekly 1 https://chinastandards.org/standards/gb-10070-1988 2026-09-07T23:08:09.020Z weekly 1 https://chinastandards.org/standards/gb-t-10071-1988 2026-09-10T00:27:29.876Z weekly 1 https://chinastandards.org/standards/gb-t-9934-1988 2026-09-11T18:27:57.256Z weekly 1 https://chinastandards.org/standards/gb-t-9801-1988 2026-09-11T18:27:57.924Z weekly 1 https://chinastandards.org/standards/gb-9660-1988 2026-09-11T18:27:58.650Z weekly 1 https://chinastandards.org/standards/gb-t-9654-1988 2026-09-11T18:27:59.416Z weekly 1 https://chinastandards.org/standards/gb-t-9226-1988 2026-09-11T18:28:00.214Z weekly 1 https://chinastandards.org/standards/gb-t-265-1988 2026-09-11T18:28:00.971Z weekly 1 https://chinastandards.org/standards/gb-9132-1988 2026-09-11T18:28:01.660Z weekly 1 https://chinastandards.org/standards/gb-t-4702-14-1988 2026-09-11T18:28:02.539Z weekly 1 https://chinastandards.org/standards/gb-t-223-62-1988 2026-09-11T18:28:03.374Z weekly 1 https://chinastandards.org/standards/gb-t-223-61-1988 2026-09-08T06:56:33.654Z weekly 1 https://chinastandards.org/standards/gb-t-8565-2-1988 2026-09-11T18:28:05.167Z weekly 1 https://chinastandards.org/standards/gb-t-8565-1-1988 2026-09-11T18:28:04.205Z weekly 1 https://chinastandards.org/standards/gb-t-8475-1987 2026-09-11T18:28:06.136Z weekly 1 https://chinastandards.org/standards/gb-t-2009-1987 2026-09-11T18:28:07.036Z weekly 1 https://chinastandards.org/standards/gb-t-7828-1987 2026-09-11T18:28:08.011Z weekly 1 https://chinastandards.org/standards/gb-7916-1987 2026-09-08T08:16:57.211Z weekly 1 https://chinastandards.org/standards/gb-t-7749-1987 2026-09-11T18:28:08.935Z weekly 1 https://chinastandards.org/standards/gb-t-7554-1987 2026-09-11T18:28:09.846Z weekly 1 https://chinastandards.org/standards/gb-t-7518-2005 2026-09-11T18:28:10.697Z weekly 1 https://chinastandards.org/standards/gb-7495-1987 2026-09-07T23:09:43.530Z weekly 1 https://chinastandards.org/standards/gb-t-7492-1987 2026-09-11T18:44:01.082Z weekly 1 https://chinastandards.org/standards/gb-t-7467-1987 2026-09-11T18:28:11.962Z weekly 1 https://chinastandards.org/standards/gb-t-7480-1987 2026-09-11T18:43:57.314Z weekly 1 https://chinastandards.org/standards/gb-t-7484-1987 2026-09-11T18:43:59.136Z weekly 1 https://chinastandards.org/standards/gb-t-7347-1987 2026-09-11T18:44:03.027Z weekly 1 https://chinastandards.org/standards/gb-t-2019-1987 2026-09-11T18:44:04.509Z weekly 1 https://chinastandards.org/standards/gb-t-7259-1987 2026-09-11T18:44:05.374Z weekly 1 https://chinastandards.org/standards/gb-t-7265-1-1987 2026-09-11T18:44:06.433Z weekly 1 https://chinastandards.org/standards/gb-t-6920-1986 2026-09-11T18:44:07.557Z weekly 1 https://chinastandards.org/standards/gb-6951-1986 2026-09-10T00:27:24.711Z weekly 1 https://chinastandards.org/standards/gb-6942-1986 2026-09-07T23:09:43.530Z weekly 1 https://chinastandards.org/standards/gb-6941-1986 2026-09-10T00:27:24.155Z weekly 1 https://chinastandards.org/standards/gb-6830-1986 2026-09-10T00:27:23.589Z weekly 1 https://chinastandards.org/standards/gb-t-116-1986 2026-09-10T00:28:43.674Z weekly 1 https://chinastandards.org/standards/gb-t-6363-1986 2026-09-11T18:44:08.516Z weekly 1 https://chinastandards.org/standards/gb-t-6258-1986 2026-09-11T18:44:10.512Z weekly 1 https://chinastandards.org/standards/gb-t-6256-1986 2026-09-11T18:44:09.471Z weekly 1 https://chinastandards.org/standards/gb-t-5874-1986 2026-09-11T18:44:11.523Z weekly 1 https://chinastandards.org/standards/gb-t-5845-5-1986 2026-09-11T18:44:12.515Z weekly 1 https://chinastandards.org/standards/gb-t-5444-1985 2026-09-11T18:44:14.404Z weekly 1 https://chinastandards.org/standards/gb-t-5443-1985 2026-09-11T18:44:13.475Z weekly 1 https://chinastandards.org/standards/gb-t-5437-1985 2026-09-11T18:44:16.272Z weekly 1 https://chinastandards.org/standards/gb-t-5438-1985 2026-09-11T18:44:15.311Z weekly 1 https://chinastandards.org/standards/gb-t-5337-1985 2026-09-11T18:44:17.233Z weekly 1 https://chinastandards.org/standards/gb-t-6001-1985 2026-09-11T18:44:18.033Z weekly 1 https://chinastandards.org/standards/gb-t-2900-40-1985 2026-09-11T18:44:19.069Z weekly 1 https://chinastandards.org/standards/gb-t-4702-10-1985 2026-09-11T18:44:19.880Z weekly 1 https://chinastandards.org/standards/gb-t-4890-1985 2026-09-11T18:44:22.038Z weekly 1 https://chinastandards.org/standards/gb-t-4881-1985 2026-09-11T18:44:20.911Z weekly 1 https://chinastandards.org/standards/gb-t-4920-1985 2026-09-11T18:44:23.044Z weekly 1 https://chinastandards.org/standards/gb-t-4921-1985 2026-09-11T18:44:23.952Z weekly 1 https://chinastandards.org/standards/gb-t-4742-1984 2026-09-11T18:44:24.910Z weekly 1 https://chinastandards.org/standards/gb-t-4653-1984 2026-09-11T18:44:25.765Z weekly 1 https://chinastandards.org/standards/gb-t-4582-1984 2026-09-11T18:44:26.832Z weekly 1 https://chinastandards.org/standards/gb-t-4110-1983 2026-09-11T18:44:27.805Z weekly 1 https://chinastandards.org/standards/gb-4065-1983 2026-09-07T23:09:43.530Z weekly 1 https://chinastandards.org/standards/gb-t-3971-3-1983 2026-09-11T18:44:28.779Z weekly 1 https://chinastandards.org/standards/gb-t-2900-46-1983 2026-09-11T18:44:29.790Z weekly 1 https://chinastandards.org/standards/gb-t-3873-1983 2026-09-11T18:44:30.723Z weekly 1 https://chinastandards.org/standards/gb-t-3770-1983 2026-09-11T18:44:31.795Z weekly 1 https://chinastandards.org/standards/gb-t-3771-1983 2026-09-11T18:44:32.814Z weekly 1 https://chinastandards.org/standards/gb-t-3659-1983 2026-09-11T18:44:33.714Z weekly 1 https://chinastandards.org/standards/gb-t-3383-1982 2026-09-11T18:44:34.752Z weekly 1 https://chinastandards.org/standards/gb-t-3380-1982 2026-09-11T18:44:35.710Z weekly 1 https://chinastandards.org/standards/gb-t-3307-1982 2026-09-11T18:44:36.752Z weekly 1 https://chinastandards.org/standards/gb-t-2880-1981 2026-09-11T18:44:37.793Z weekly 1 https://chinastandards.org/standards/gb-t-2683-1981 2026-09-11T18:44:38.754Z weekly 1 https://chinastandards.org/standards/gb-t-2625-1981 2026-09-11T18:44:49.236Z weekly 1 https://chinastandards.org/standards/gb-t-2541-1981 2026-09-11T18:44:50.351Z weekly 1 https://chinastandards.org/standards/gb-t-2349-1980 2026-09-11T18:44:52.353Z weekly 1 https://chinastandards.org/standards/gb-t-2347-1980 2026-09-11T18:44:51.368Z weekly 1 https://chinastandards.org/standards/gb-2017-1980 2026-09-11T18:44:53.341Z weekly 1 https://chinastandards.org/standards/gb-t-2312-1980 2026-09-11T18:44:54.351Z weekly 1 https://chinastandards.org/standards/gb-t-1814-1979 2026-09-11T18:44:55.471Z weekly 1 https://chinastandards.org/standards/gb-1788-1979 2026-09-10T00:25:34.051Z weekly 1 https://chinastandards.org/standards/gb-440-1977 2026-09-10T00:26:57.242Z weekly 1 https://chinastandards.org/standards/gb-t-1131-2-2004 2026-09-10T00:28:30.418Z weekly 1 https://chinastandards.org/standards/hp-0000-0000 2026-09-12T22:39:05.616Z yearly 0.1