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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
Bus-bar clamp (castle bus)
WITHDRAWN published on 23.1.1985
Selected format:Bus-bar clamps (tubing bus)
WITHDRAWN published on 1.1.1985
Selected format:Bus-bar clamps (tubing bus)
WITHDRAWN published on 23.1.1985
Selected format:Inorganic waterproof and leakage-preventing materials
WITHDRAWN published on 25.3.2009
Selected format:Aluminium panels for building decoration
WITHDRAWN published on 28.3.2009
Selected format:Metal and metal-composite ceilings
WITHDRAWN published on 28.3.2009
Selected format:Shower outlets for bathing
WITHDRAWN published on 28.3.2009
Selected format:Flexible hose for sanitary tapware
WITHDRAWN published on 28.3.2009
Selected format:Cable support (single-double bus)
WITHDRAWN published on 1.1.1985
Selected format:Cable support (built-up bus)
WITHDRAWN published on 1.1.1985
Selected format:Latest update: 2026-05-04 (Number of items: 2 275 493)
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