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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
Titanium and titanium alloy wire
WITHDRAWN published on 15.7.1998
Selected format:Titanium and titanium alloy wire
WITHDRAWN published on 30.4.2007
Selected format:Wind turbines—Electrical simulation models
WITHDRAWN published on 14.5.2018
Selected format:Seamless titanium and titanium alloy tubes
WITHDRAWN published on 1.1.1983
Selected format:Titanium and titanium alloy tubes
WITHDRAWN published on 17.10.1995
Selected format:Titanium and titanium alloy seamless tubes
WITHDRAWN published on 10.1.2011
Selected format:Seamless titanium tubes for condensers and heat exchangers
WITHDRAWN published on 1.1.1983
Selected format:Titanium and titanium alloy tubes for condensers and heat exchangers
WITHDRAWN published on 17.10.1995
Selected format:Technical requirements of tantalum pentaoxide
WITHDRAWN published on 16.4.1983
Selected format:Technical requirements of niobium pentaoxide
WITHDRAWN published on 16.4.1983
Selected format:Latest update: 2025-12-18 (Number of items: 2 252 678)
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