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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
Gauges of pin caps
WITHDRAWN published on 22.11.1986
Selected format:Gauges of pin lamp caps
WITHDRAWN published on 5.11.2001
Selected format:Gauges of prefocus caps
WITHDRAWN published on 22.11.1986
Selected format:Gauges of prefocus caps
WITHDRAWN published on 5.8.2002
Selected format:Relative humidity tables for environmental test
WITHDRAWN published on 22.11.1986
Selected format:Specifications for Design of Building Foundations
WITHDRAWN published on 1.1.1989
Selected format:-
WITHDRAWN published on 1.1.1985
Selected format:Hexagon socket head cap screws
WITHDRAWN published on 26.9.2000
Selected format:Hexagon socket button head screws
WITHDRAWN published on 26.9.2000
Selected format:Hexagon socket button head screws
WITHDRAWN published on 25.8.2008
Selected format:Latest update: 2026-04-08 (Number of items: 2 271 105)
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