JB/T 7421.1-1994Milling drilling Accuracy (English PDF)
钻铣床 精度
JB/T 7421.1 | Evolution and historical versions
| Std ID | Title | Status |
|---|---|---|
| JB/T 7421.1-2025 | Drilling and milling machines-Part 1: Testing of the accuracy | Valid |
| JB/T 7421.1-2006 | Drilling and milling machines - Part 1 : Testing of the accuracy | Obsolete |
| JB/T 7421.1-1994 | Milling drilling Accuracy | Obsolete |
JB/T 7421.1-1994 is obsolete. It has been replaced by JB/T 7421.1-2006. This page sells the obsolete edition, for projects and contracts that still cite it.
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Issued by
Ministry of Machinery Industry
Level / Type
Industry · Recommended
Issue date
September 6, 1994
Implementation date
July 1, 1995
Scope
JB/T 7421.1-1994 is the English-translated version of 钻铣床 精度.
JB/T 7421.1-1994 is the Chinese industry standard "Milling drilling Accuracy". It was issued on September 6, 1994 by the Ministry of Machinery Industry, and took effect on July 1, 1995. It is obsolete: it has been replaced by JB/T 7421.1-2006.
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Document preview — JB/T 7421.1-1994
National Standard of the People's Republic of China
Issued by: Ministry of Machinery Industry
Contents
- Document data
1 Document data
Sector: Machinery (industry standard).
Issuing body: Ministry of Machinery Industry.
Date of issue: 1994-09-06.
Date of implementation: 1995-07-01.
Status: obsolete, replaced by JB/T 7421.1-2006.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — all pages — is available in the English PDF.
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Related Standards
JB/T 7421.2-2025 — Drilling and milling machine - Part 2: Specification
JB/T 7421.2-2006 — Drilling and milling machines - Part 2: Technical requirements
JB/T 7421.2-1994 — Milling drilling Technical conditions
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JB/T 7421.1-1994
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