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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
Blank detail specification for oscilloscope tubes and indicator tubes
WITHDRAWN published on 11.4.1986
Selected format:Filler metals for brazing and soldering--Code of symbols
WITHDRAWN published on 1.1.1986
Selected format:Filler metal for soft soldering and brazing—Designation
WITHDRAWN published on 12.7.1995
Selected format:Compilation method for kind and type of flexible card clothing
WITHDRAWN published on 1.1.1986
Selected format:Chemical reagent—Hydrobromic acid
WITHDRAWN published on 1.3.1993
Selected format:Flexible card clothing for cotton
WITHDRAWN published on 1.1.1986
Selected format:Flexible card clothing for woolen
WITHDRAWN published on 1.1.1986
Selected format:Flexible card clothing for raising
WITHDRAWN published on 1.1.1986
Selected format:Flexible card clothing for waste card
WITHDRAWN published on 1.1.1986
Selected format:Flexible card clothing for waste silk
WITHDRAWN published on 1.1.1986
Selected format:Latest update: 2026-04-19 (Number of items: 2 274 482)
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