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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
Plain washers--Product grade A
Standard published on 5.12.2002
Selected format:Plain washerschamfered--Product grade A
Standard published on 5.12.2002
Selected format:Plain washers for clevis pins
Standard published on 26.9.2000
Selected format:Plain washers for screw and washer assemblies
Standard published on 5.12.2002
Selected format:Plain washers for tapping sew and washer assemblies
Standard published on 5.12.2002
Selected format:Circular screwing dies - Part 1: The types and dimensions for circular screwing dies and die stocks
Standard published on 3.6.2008
Selected format:Circular screwing dies - Part 2: Technical specifications
Standard published on 3.6.2008
Selected format:Inspection methods of wet salted pig skin
Standard published on 26.5.2009
Selected format:Inspection method for raw raccoon skin
Standard published on 26.5.2009
Selected format:Layout key for official document of Party and government organs
Standard published on 29.6.2012
Selected format:Latest update: 2026-04-19 (Number of items: 2 274 482)
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