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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
Cold-rolled stainless steel strips for wrist watch
WITHDRAWN published on 1.1.1985
Selected format:Stainless steel flats for wrist watch
WITHDRAWN published on 1.1.1985
Selected format:Technical requirements for structural steel with specified hardenability bands
WITHDRAWN published on 18.7.1985
Selected format:Structural steels subject to end-quench hardenability requirements
WITHDRAWN published on 19.1.2004
Selected format:High elastic alloy 3J9 for spring
WITHDRAWN published on 1.1.1985
Selected format:-
WITHDRAWN published on 1.1.1985
Selected format:Alloy spring steel wires
WITHDRAWN published on 1.11.1999
Selected format:-
WITHDRAWN published on 1.1.1985
Selected format:Method of measuring tyre static loaded performance
WITHDRAWN published on 1.1.1984
Selected format:Chromium-vanadium spring steel wire for valve
WITHDRAWN published on 1.1.1985
Selected format:Latest update: 2026-11-11 (Number of items: 2 209 289)
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