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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
Single-stage centripetal turbine hydrodynamic torque converters--Types and basic parameters
WITHDRAWN published on 22.2.1989
Selected format:Single-stage centripetal turbine torque converters—Types and basic parameters
WITHDRAWN published on 19.7.2006
Selected format:Plastics—Determination of charpy impact strength of rigid materials
WITHDRAWN published on 19.6.1993
Selected format:Standard test method for binding strength of sintered metal friction elements
WITHDRAWN published on 11.2.1989
Selected format:Transverse vibration testing method for fasteners
WITHDRAWN published on 22.2.1989
Selected format:Headless studs for stud welding
WITHDRAWN published on 22.2.1989
Selected format:Unthreaded studs for drawn arc stud welding with ceramic ferrule
WITHDRAWN published on 10.1.2011
Selected format:Unthreaded stud for short-cycle drawn arc stud welding
WITHDRAWN published on 24.2.2016
Selected format:Unthreaded studs for capacitor discharge welding
WITHDRAWN published on 10.1.2011
Selected format:Cheese head studs for stud welding
WITHDRAWN published on 22.2.1989
Selected format:Latest update: 2026-06-09 (Number of items: 2 281 484)
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