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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
Lettering and marking of railway cars--General regulation
WITHDRAWN published on 5.5.1987
Selected format:Lettering and marking of railway cars--Letterand style of calligraphy
WITHDRAWN published on 5.5.1987
Selected format:Residual stress measurement by X-ray
WITHDRAWN published on 4.5.1987
Selected format:Non-destructive testing—Practice for residual stress measurement by X-ray
WITHDRAWN published on 30.7.2008
Selected format:The offset lithographic prints for decorating
WITHDRAWN published on 30.4.1987
Selected format:The relief prints for decorating
WITHDRAWN published on 30.4.1987
Selected format:The intaglic prints for decorating
WITHDRAWN published on 30.4.1987
Selected format:Tantalum carbide powder
WITHDRAWN published on 1.1.1987
Selected format:Basic dimensions and performance for No 13 coupler
WITHDRAWN published on 1.1.1987
Selected format:Basic dimensions and parameters of yoke for No 13 coupler
WITHDRAWN published on 1.1.1987
Selected format:Latest update: 2026-03-30 (Number of items: 2 269 988)
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