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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 general specification for arc welding machines
WITHDRAWN published on 2.6.1995
Selected format:Inhibited mineral turbine oils--Determination of oxidation stability
WITHDRAWN published on 1.1.1987
Selected format:The terminology of technological materials for heat treatment
WITHDRAWN published on 3.8.1987
Selected format:The terminology of technological materials for heat treatment
WITHDRAWN published on 16.4.2002
Selected format:Dial bore gauges
WITHDRAWN published on 10.8.1987
Selected format:Dial bore gauges
WITHDRAWN published on 10.2.2004
Selected format:-
WITHDRAWN published on 1.1.1987
Selected format:Dial test indicators
WITHDRAWN published on 18.11.1998
Selected format:Gauges for metric trapezoidal scerew threads--Technical specifications
WITHDRAWN published on 10.8.1987
Selected format:Type and size of gauges for metric trapezoidal screw threads
WITHDRAWN published on 10.8.1987
Selected format:Latest update: 2026-03-25 (Number of items: 2 269 413)
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