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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WITHDRAWN published on 1.1.1987
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WITHDRAWN published on 1.1.1987
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WITHDRAWN published on 1.1.1987
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WITHDRAWN published on 1.1.1987
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WITHDRAWN published on 1.1.1987
Selected format:General specification for quality inspection of gear materials and their heat treatment
WITHDRAWN published on 24.7.2000
Selected format:Vibration and shock—Isolators—Procedure for specifying characteristics
WITHDRAWN published on 30.12.1987
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WITHDRAWN published on 1.1.1987
Selected format:Terminology of forging and stamping
WITHDRAWN published on 4.3.1997
Selected format:Specification for turbine gearings
WITHDRAWN published on 25.12.1987
Selected format:Latest update: 2026-05-02 (Number of items: 2 275 366)
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