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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
General terminology of machining tooling
WITHDRAWN published on 22.2.1989
Selected format:Straight-sided internal spline—Length series
WITHDRAWN published on 10.12.1988
Selected format:-
WITHDRAWN published on 1.1.1988
Selected format:Technical requirements of heavy duty railway motor trolley
WITHDRAWN published on 9.10.1996
Selected format:Technical requirements of heavy duty railway motor trolley
WITHDRAWN published on 2.9.2010
Selected format:Technical requirements of DAF type catenary setting and stretching car group for electric railway
WITHDRAWN published on 1.1.1988
Selected format:Vibration and shock—methods for analysis and presentation of data
WITHDRAWN published on 10.12.1988
Selected format:Basic parameters of cylindrical worm gears
WITHDRAWN published on 10.12.1988
Selected format:Terminology and symbols for cylindrical worm and worm wheel
WITHDRAWN published on 10.12.1988
Selected format:Basic tooth profile of cylindrical worm
WITHDRAWN published on 10.12.1988
Selected format:Latest update: 2026-06-12 (Number of items: 2 281 969)
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