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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
Bars and plate blanks of molybdnum
WITHDRAWN published on 31.12.1982
Selected format:Bars and plate blanks of molybdenum
WITHDRAWN published on 30.4.2007
Selected format:-
WITHDRAWN published on 1.1.1982
Selected format:Tantalum wires
WITHDRAWN published on 17.10.1995
Selected format:Machine and hand taps
WITHDRAWN published on 1.1.1983
Selected format:Machine and hand taps
WITHDRAWN published on 20.12.1994
Selected format:Long shank machine taps
WITHDRAWN published on 1.1.1994
Selected format:Short shank machine and hand taps
WITHDRAWN published on 20.12.1994
Selected format:Long shank machine taps
WITHDRAWN published on 1.1.1983
Selected format:-
WITHDRAWN published on 1.1.1983
Selected format:Latest update: 2025-12-22 (Number of items: 2 253 013)
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