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
Agricultural machinery half wide V-belt pulleys
WITHDRAWN published on 22.2.1989
Selected format:Agricultural machinery—Endless variable-speed V-belts and groove sections of corresponding pulleys
WITHDRAWN published on 1.11.2007
Selected format:Technical conditions of steel-bonded tungsten carbides
WITHDRAWN published on 11.2.1989
Selected format:Specifications for steel-bonded tungsten carbides and determination of its transverse rupture strength, impact toughness and hardness
WITHDRAWN published on 11.8.2008
Selected format:Steel bonded tungsten carbides--Determination of transverse rupture strength
WITHDRAWN published on 22.2.1989
Selected format:Steel bonded tungsten carbides—Determination of transverse rupture strength
WITHDRAWN published on 9.4.2002
Selected format:Steel bonded tungsten carbides--Determination of im-pact toughness
WITHDRAWN published on 22.2.1989
Selected format:Steel bonded tungsten carbides—Determination of impact toughness
WITHDRAWN published on 9.4.2002
Selected format:-
WITHDRAWN published on 1.1.1979
Selected format:Steel bonded tungsten carbides--Determination of ROck-well hardness (scales C and A)
WITHDRAWN published on 22.2.1989
Selected format:Latest update: 2026-04-08 (Number of items: 2 271 105)
© Copyright 2026 NORMSERVIS s.r.o.