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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
Aluminum alloy casement windows
WITHDRAWN published on 1.1.1987
Selected format:Aluminium doors
WITHDRAWN published on 12.3.2003
Selected format:Aluminium windows and doors
WITHDRAWN published on 7.8.2008
Selected format:Aluminum alloy casement windows
WITHDRAWN published on 1.1.1987
Selected format:Aluminium windows
WITHDRAWN published on 12.3.2003
Selected format:Plain washers--Small series--Product grade A
WITHDRAWN published on 1.8.1985
Selected format:Aluminum alloy sliding doors
WITHDRAWN published on 1.1.1987
Selected format:Aluminum alloy sliding windows
WITHDRAWN published on 1.1.1987
Selected format:Aluminum alloy doors with floor closer
WITHDRAWN published on 1.1.1987
Selected format:Chloroprene foam rubber sealing strip for steel doors and windows (stick-on type)
WITHDRAWN published on 1.1.1987
Selected format:Latest update: 2026-03-19 (Number of items: 2 268 472)
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