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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
Taper reamers--Technical requirements
WITHDRAWN published on 28.3.1984
Selected format:Machine reamers with parallel shanks with carbide tips
WITHDRAWN published on 28.3.1984
Selected format:Machine reamers with parallel shanks with carbide tips
WITHDRAWN published on 10.2.2004
Selected format:Machine reamers with Morse taper shanks with carbide tips
WITHDRAWN published on 28.3.1984
Selected format:Machine reamers with Morse taper shanks with carbide tips
WITHDRAWN published on 10.2.2004
Selected format:Reamers with carbide tips--Technical requirements
WITHDRAWN published on 28.3.1984
Selected format:Reamers with carbide tips—Technical requirements
WITHDRAWN published on 10.2.2004
Selected format:Adjustable floating reamers with carbide tips
WITHDRAWN published on 1.1.1984
Selected format:Arbors for shell reamers and shell core drills
WITHDRAWN published on 28.3.1984
Selected format:Core drills with parallel shanks
WITHDRAWN published on 28.3.1984
Selected format:Latest update: 2025-11-06 (Number of items: 2 243 364)
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