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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
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WITHDRAWN published on 1.1.1986
Selected format:Hexagon nuts with flange
WITHDRAWN published on 26.9.2000
Selected format:Hexagon nuts with flange—Fine pitch thread
WITHDRAWN published on 26.9.2000
Selected format:Chemical reagent General method for the determination of crystallizing point
WITHDRAWN published on 5.9.1988
Selected format:Prevailing torque type hexagon nuts(with non-metallic insert),style 2
WITHDRAWN published on 26.9.2000
Selected format:Prevailing torque type hexagon nuts(with non-metallic insert),style 2
WITHDRAWN published on 10.1.2011
Selected format:Prevailing torque type hexagon nuts with flange (with non-metallic insert)
WITHDRAWN published on 1.1.1986
Selected format:Prevailing torque type hexagon nuts with flange(with non-metallic insert)
WITHDRAWN published on 26.9.2000
Selected format:Prevailing torque type hexagon nuts with flange(with non-metallic insert) with fine pitch thread
WITHDRAWN published on 26.9.2000
Selected format:Prevailing torque type all-metal hexagon nuts, style 2--Property classes 5, 8 10 and 12
WITHDRAWN published on 1.1.1986
Selected format:Latest update: 2026-04-20 (Number of items: 2 274 419)
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