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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
Marking,packing,transport and storage of cemented carbide products
WITHDRAWN published on 26.9.2006
Selected format:Carbide tips for brazing on turning tools
WITHDRAWN published on 1.1.1985
Selected format:Brazed carbide tips
WITHDRAWN published on 1.1.1985
Selected format:Electrolytic copper powder
WITHDRAWN published on 22.7.1985
Selected format:Electrolytic copper powder
WITHDRAWN published on 30.4.2007
Selected format:Electrolytic nickel powder
WITHDRAWN published on 22.7.1985
Selected format:-
WITHDRAWN published on 1.1.1985
Selected format:Copper and copper alloy-seamless tubes-eddy current testing method
WITHDRAWN published on 15.7.1998
Selected format:Copper and copper alloy-seamless tubes-eddy current testing method
WITHDRAWN published on 31.3.2008
Selected format:Permeable sintered metal materials—Determination of bubble test pore size
WITHDRAWN published on 22.7.1985
Selected format:Latest update: 2026-06-11 (Number of items: 2 281 927)
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