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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
Brass wires for spoke nuts of bicycles
WITHDRAWN published on 1.1.1982
Selected format:Oxygen-free copper wires
WITHDRAWN published on 1.1.1982
Selected format:Nickel wires
WITHDRAWN published on 28.5.1982
Selected format:Nickel and its alloy wires for electronic tube
WITHDRAWN published on 28.5.1982
Selected format:Non-destructive testing—Ultrasonic guided wave testing—General principle
WITHDRAWN published on 3.9.2014
Selected format:Oxygen-free copper wires
WITHDRAWN published on 1.1.1982
Selected format:(Silicon bronze wire)
WITHDRAWN published on 1.1.1982
Selected format:E-commerce statistical indicator system—Part 2: Online marketing
WITHDRAWN published on 30.9.2014
Selected format:Technical specification for fittings of ±800 kV DC overhead transmission line
WITHDRAWN published on 30.9.2014
Selected format:Technical specification for fittings of 1 000 kV substation
WITHDRAWN published on 30.9.2014
Selected format:Latest update: 2026-04-21 (Number of items: 2 274 412)
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