We need your consent to use the individual data so that you can see information about your interests, among other things. Click "OK" to give your consent.
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
Cross recessed raised countersunk head thread forming screws
WITHDRAWN published on 2.7.1986
Selected format:Hexagon head thread forming screws
WITHDRAWN published on 2.7.1986
Selected format:Hexagon lobular socket thread forming screws
WITHDRAWN published on 2.7.1986
Selected format:-
WITHDRAWN published on 1.1.1986
Selected format:Classification and codes of occupations
WITHDRAWN published on 18.3.1999
Selected format:Classification and codes of occupations
WITHDRAWN published on 6.5.2009
Selected format:Radiological protection standard for building materials
WITHDRAWN published on 13.1.2000
Selected format:Limit of radionuclides in building materials
WITHDRAWN published on 10.12.2001
Selected format:Graphical symbols for piping systems—Basic principles
WITHDRAWN published on 2.7.1986
Selected format:Graphical symbols for piping systems—Piping
WITHDRAWN published on 2.7.1986
Selected format:Latest update: 2026-06-26 (Number of items: 2 284 409)
© Copyright 2026 NORMSERVIS s.r.o.