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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
Machine reamers with edge inclination with parallel shanks
WITHDRAWN published on 10.2.2004
Selected format:Machine reamers--Technical requirements
WITHDRAWN published on 28.3.1984
Selected format:Special tolerance for reamers
WITHDRAWN published on 28.3.1984
Selected format:Machine bridge reamers with Morse taper shanks
WITHDRAWN published on 28.3.1984
Selected format:Machine bridge reamers with Morse taper shanks
WITHDRAWN published on 10.2.2004
Selected format:Hand taper 1:50 reamers--Technical requirements
WITHDRAWN published on 28.3.1984
Selected format:Tolerancing principles
WITHDRAWN published on 1.1.1984
Selected format:Tolerancing principle
WITHDRAWN published on 18.12.1996
Selected format:Geometrical Product Specifications(GPS)—Tolerancing principle
WITHDRAWN published on 16.3.2009
Selected format:Test methods of weight for printed and dyed fabrics
WITHDRAWN published on 20.6.1978
Selected format:Latest update: 2025-11-06 (Number of items: 2 243 364)
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