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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
Spherical plain bearings--Identification code
WITHDRAWN published on 25.4.1988
Selected format:Spherical plain bearings—Identification code
WITHDRAWN published on 11.10.2002
Selected format:Spherical plain bearings,joint type--Fits
WITHDRAWN published on 12.3.1990
Selected format:Spherical plain bearings—Fits
WITHDRAWN published on 11.10.2002
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WITHDRAWN published on 1.1.1981
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WITHDRAWN published on 1.1.1981
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WITHDRAWN published on 1.1.1981
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WITHDRAWN published on 1.1.1981
Selected format:Spherical plain radial bearings, joint type—Technical requirements
WITHDRAWN published on 24.6.1981
Selected format:Spherical plain bearings—General technical regulations
WITHDRAWN published on 28.2.2008
Selected format:Latest update: 2026-03-13 (Number of items: 2 266 261)
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