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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
Test methods of ironing fastness for printed and dyed fabrics
WITHDRAWN published on 20.6.1978
Selected format:Permanent magnetic material of rare earth cobalt
WITHDRAWN published on 3.1.2000
Selected format:Tungsten wires
WITHDRAWN published on 1.1.1984
Selected format:Tungsten wires
WITHDRAWN published on 25.12.1997
Selected format:-
WITHDRAWN published on 1.1.1984
Selected format:Molybdenum wires
WITHDRAWN published on 25.12.1997
Selected format:Molybdenum wire
WITHDRAWN published on 24.11.2003
Selected format:Molybdenum tungsten alloy wires
WITHDRAWN published on 9.3.1984
Selected format:Tungsten rhenium alloy wires
WITHDRAWN published on 9.3.1984
Selected format:Tungsten-rhenium alloy wires
WITHDRAWN published on 18.7.2002
Selected format:Latest update: 2026-01-25 (Number of items: 2 257 482)
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