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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 tools—Spindle noses and face plates—Sizes for interchangeability—Part 1:Type A
WITHDRAWN published on 13.11.1997
Selected format:Machine tools—Connecting dimensions of spindle noses and work holding chucks—Part 1:Conical connection
WITHDRAWN published on 11.8.2008
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WITHDRAWN published on 1.1.1986
Selected format:Machine tools—Spindle noses and face plates—Sizes for interchangeability—Part 2:Camlock type
WITHDRAWN published on 13.11.1997
Selected format:-
WITHDRAWN published on 1.1.1986
Selected format:Machine tools—Spindle noses and face plates—Sizes for interchangeability—Part 3:Bayonet type
WITHDRAWN published on 13.11.1997
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WITHDRAWN published on 1.1.1986
Selected format:Types, basic parameters and dimensions of four-jaw independent chucks
WITHDRAWN published on 1.3.1986
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WITHDRAWN published on 1.1.1986
Selected format:Testing of accuracy of four-jaw independent chucks
WITHDRAWN published on 1.3.1986
Selected format:Latest update: 2026-04-28 (Number of items: 2 274 955)
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