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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
Flared type tube fittings—Straight thread run tee—Body
WITHDRAWN published on 25.11.1985
Selected format:Flared type tube fittings—Swivel branch tee—Assembly
WITHDRAWN published on 25.11.1985
Selected format:Flared typed tube fittings—Swivel branch tee—Body
WITHDRAWN published on 25.11.1985
Selected format:Flared type tube fittings—Union tee—Assembly
WITHDRAWN published on 25.11.1985
Selected format:Flared type tube fittings—Union tee—Boby
WITHDRAWN published on 25.11.1985
Selected format:-
WITHDRAWN published on 1.1.1965
Selected format:Flared type tube fittings—Union tee reducer—Assembly
WITHDRAWN published on 25.11.1985
Selected format:Flared type tube fittings—Union tee reducer—Body
WITHDRAWN published on 25.11.1985
Selected format:Flared type tube fittings—Union cross—Assembly
WITHDRAWN published on 25.11.1985
Selected format:Flared type tube fittings—Union cross—Body
WITHDRAWN published on 25.11.1985
Selected format:Latest update: 2026-05-13 (Number of items: 2 276 848)
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