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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
The parts and units of jigs and fixtures--Transitional plate for 3-jaw chuck
WITHDRAWN published on 1.1.1991
Selected format:The parts and units of jigs and fixtures--Transitional plate for 4-jaw chuck
WITHDRAWN published on 1.1.1991
Selected format:The parts and units of jigs and fixtures--Equal angles
WITHDRAWN published on 1.1.1991
Selected format:The parts and units of jigs and fixtures--Isosceles angles
WITHDRAWN published on 1.1.1991
Selected format:The parts and units of jigs and fixtures--Unequal angles
WITHDRAWN published on 1.1.1991
Selected format:The parts and units of jigs and fixtures--Stopper
WITHDRAWN published on 1.1.1991
Selected format:Specification for the first and second order leveling
WITHDRAWN published on 5.5.1991
Selected format:Specifications for the third and fourth order leveling
WITHDRAWN published on 5.5.1991
Selected format:Specification for hand-held metal detectors
WITHDRAWN published on 5.5.1991
Selected format:General specification for hand-held metal detector
WITHDRAWN published on 9.10.2003
Selected format:Latest update: 2025-09-14 (Number of items: 2 232 183)
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