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Standards GB are Chinese national standards, which are issued by China's Standardization Administration Office (SAC).
Chinese national standards are used all over China commonly labeled as GB standards. They determine the united production requirements regarding product safety and quality .
GB standards are often modified or created according to the international standards of ISO, IEC or any other international level.
Although, they are largely harmonized, GB standards may differ from international standards .
Approximately 15% of all GB standards are obligatory and they can be identified according to the prefix GB, after which the code of the standards follows:
GB – Obligatory national standards
GB/T – Optional national standards
GB/Z – National steering technical document
Widened flat body keyway broach types and dimensions
WITHDRAWN published on 17.4.1993
Selected format:Keyway broach with chamfer types and dimensions
WITHDRAWN published on 17.4.1993
Selected format:Technical specifications for keyway broaches
WITHDRAWN published on 17.4.1993
Selected format:-
WITHDRAWN published on 1.1.1978
Selected format:Machanically clamped carbide side milling cutters
WITHDRAWN published on 17.4.1993
Selected format:Automatic spring winding machine—Testing of the accuracy
WITHDRAWN published on 17.4.1993
Selected format:Ejector drills with carbide tips
WITHDRAWN published on 17.4.1993
Selected format:Rotary gear shaving cutters
WITHDRAWN published on 17.4.1993
Selected format:Sampling method of synthetic staple fibres
WITHDRAWN published on 20.4.1993
Selected format:Testing method for linear density of synthetic staple fibres
WITHDRAWN published on 20.4.1993
Selected format:Latest update: 2026-04-10 (Number of items: 2 271 455)
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