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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
Big plain washer for assembly
WITHDRAWN published on 16.4.1988
Selected format:Samll washer for tapping screw assembly
WITHDRAWN published on 16.4.1988
Selected format:Big washer for tapping screw assembly
WITHDRAWN published on 16.4.1988
Selected format:Cross recessed small pan head screw and small plain washer assemblies
WITHDRAWN published on 16.4.1988
Selected format:Cress recessed small pan head serew and big plain washer assemblies
WITHDRAWN published on 16.4.1988
Selected format:Wire rope for aerial ropeways--Code forexamination and discard
WITHDRAWN published on 18.4.1988
Selected format:Suspension electromagnetic separators
WITHDRAWN published on 1.1.1988
Selected format:Beater wheel mill
WITHDRAWN published on 1.1.1988
Selected format:Determination of the smoke and dust of industrial kiln and furnace
WITHDRAWN published on 4.5.1988
Selected format:Forged round and square steels—Dimension, shape, weightand tolerance
WITHDRAWN published on 19.2.1987
Selected format:Latest update: 2026-03-17 (Number of items: 2 266 788)
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