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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
Hexagon fit bolts--Product grade A and B
WITHDRAWN published on 24.6.1988
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WITHDRAWN published on 1.1.1980
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WITHDRAWN published on 1.1.1988
Selected format:Jute yarns and threads—Acceptance inspection regulation
WITHDRAWN published on 19.11.1987
Selected format:Conformity assessment—Vocabulary and general principles
WITHDRAWN published on 4.9.2006
Selected format:Conformity assessment—Impartiality—Principles and requirements
WITHDRAWN published on 30.12.2011
Selected format:Conformity assessment—Confidentiality—Principles and requirements
WITHDRAWN published on 30.12.2011
Selected format:Conformity assessment—Complaints and appeals—Principles and requirements
WITHDRAWN published on 30.12.2011
Selected format:Conformity assessment—Disclosure of information—Principles and requirements
WITHDRAWN published on 30.12.2011
Selected format:Conformity assessment—Use of management systems—Principles and requirements
WITHDRAWN published on 30.12.2011
Selected format:Latest update: 2026-06-10 (Number of items: 2 281 585)
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