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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
Steel for the reinforcement of concrete—Part 3:Welded fabric
WITHDRAWN published on 23.12.2010
Selected format:Hot rolled (or forged) bars for iron-cobalt-molybdenum hysteresis alloys
WITHDRAWN published on 4.4.1994
Selected format:Deformable permanent-magnet steels
WITHDRAWN published on 4.4.1994
Selected format:Types of heat-resisting superalloys
WITHDRAWN published on 4.4.1994
Selected format:Classification and designation for superalloys and high temperature intermetallic materials
WITHDRAWN published on 21.7.2005
Selected format:Hot-rolled heat-resisting superalloy barsfor rotating parts
WITHDRAWN published on 4.4.1994
Selected format:Hot-rolled superalloy bars for rotating parts
WITHDRAWN published on 13.5.2008
Selected format:Cold brawn heat-resisting superalloy bars
WITHDRAWN published on 4.4.1994
Selected format:Hot-rolled heat-resisting superalloy plates
WITHDRAWN published on 4.4.1994
Selected format:Hot-rolled superalloy sheets
WITHDRAWN published on 10.1.2011
Selected format:Latest update: 2026-04-02 (Number of items: 2 270 295)
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