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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
Weld studs for arc welding
WITHDRAWN published on 22.2.1989
Selected format:Threaded studs for drawn arc stud welding with ceramic ferrule
WITHDRAWN published on 10.1.2011
Selected format:Weld studs for capacitor discharge welding
WITHDRAWN published on 22.2.1989
Selected format:Weld studs for capacitor discharge welding
WITHDRAWN published on 25.8.2008
Selected format:Threaded studs with flange pitchand stud with internal thread for short-cycle drawn arc stud welding
WITHDRAWN published on 10.1.2011
Selected format:Visual-frequency--Coaxial connectors generic specification of
WITHDRAWN published on 13.4.1988
Selected format:Cabled distribution systems primarily intended for sound and television signals operating between30 MHz and 1 GHz--Electrical and mechanical matching values
WITHDRAWN published on 13.4.1988
Selected format:Method of measurement of speed fluctuations in sound recording and reproducing equipment
WITHDRAWN published on 2.3.1988
Selected format:Colourless optical glass
WITHDRAWN published on 25.5.1987
Selected format:Performance requirements for shipborne radio direction finder
WITHDRAWN published on 13.4.1988
Selected format:Latest update: 2025-09-01 (Number of items: 2 213 834)
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