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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
Hexagon flange head tapping screws
WITHDRAWN published on 29.5.1997
Selected format:Verification of tensile testing machines
WITHDRAWN published on 29.5.1997
Selected format:Verification of static uniaxial testing machines—Part 1:Tension/compression testing machines—Verification and calibration of the force-measuring system
WITHDRAWN published on 25.11.2002
Selected format:Verification of static uniaxial testing machines—Part 1:Tension/compression testing machines—Verification and calibration of the force-measuring system
WITHDRAWN published on 20.6.2008
Selected format:Verification of static uniaxial testing machines—Part 2:Tension creep testing machines—Verification of the applied force
WITHDRAWN published on 29.8.2005
Selected format:Electro-hydraulic universal testing machines
WITHDRAWN published on 29.5.1997
Selected format:Electro-hydraulic servo universal testing machines
WITHDRAWN published on 30.6.2008
Selected format:Location number
WITHDRAWN published on 26.5.1997
Selected format:Bar code for commodity—Global location number and symbol marking
WITHDRAWN published on 27.7.2007
Selected format:Interleaved 2 of 5 bar code
WITHDRAWN published on 26.5.1997
Selected format:Latest update: 2025-11-12 (Number of items: 2 243 625)
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