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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
Fixed handle holddown screw
WITHDRAWN published on 1.1.1991
Selected format:movable handle holddown screw
WITHDRAWN published on 1.1.1991
Selected format:Bulk blending fertilizer
WITHDRAWN published on 9.4.2008
Selected format:Triple superphosphorate
WITHDRAWN published on 9.4.2008
Selected format:Microbeam analysis—Electron probe microanalysis (EPMA)—Vocabulary
WITHDRAWN published on 11.4.2008
Selected format:Guide for electron beam microananlysis of defect in steel materials
WITHDRAWN published on 11.4.2008
Selected format:Spherical head screw
WITHDRAWN published on 1.1.1991
Selected format:Industrial dense woven wire cloth
WITHDRAWN published on 16.4.2008
Selected format:Particle size analysis - Image analysis methods - Part 1: Static image analysis method
WITHDRAWN published on 16.4.2008
Selected format:Quick discharging bolt for T-slot
WITHDRAWN published on 1.1.1991
Selected format:Latest update: 2026-01-11 (Number of items: 2 254 176)
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