QB/T 1513-1992 Sewing machine needle size tolerance and fit QB/T1513-1992 standard download decompression password: www.bzxz.net

This standard specifies the limit deviations of linear dimensions and angular dimensions of sewing machine parts without tolerance

This standard specifies the product classification, technical requirements, test methods, inspection rules and basic requirements

This standard specifies the technical requirements, test methods, inspection rules and basic requirements for marking, packaging,

This standard specifies the classification method of printing ink products, which is applicable to the production and use departme

This standard specifies the technical specifications for cast-coated white paperboard. This standard applies to cast-coated paperb

This standard specifies the definition, product classification, technical requirements, test methods, inspection rules and marking

This standard specifies the general technical requirements for A-type, B-type, BT-type, ED-type, G-type, K-type, M-type, P-type, R