QB/T 4298-2012Testing method of relative tolerance of sewing machine high and low speed stitch length (English PDF)

QB/T 4298-2012 (Testing method of relative tolerance of sewing machine high and low speed stitch length) is available as an English-translated PDF.

QB/T 4298-2012 is the Chinese standard "Testing method of relative tolerance of sewing machine high and low speed stitch length". This standard specifies the height of industrial sewing machines, sewing stitch length low relative error test methods, test equipment, test methods and test reports. It was issued by Ministry of Industry and Information Technology.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 8 pages — is available in the English PDF.

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