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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
Pellet mill--Types and basic parameters
WITHDRAWN published on 1.1.1989
Selected format:-
WITHDRAWN published on 1.1.1989
Selected format:Tail-fin anchor
WITHDRAWN published on 12.3.1998
Selected format:Specifications of using motor vehicle brake fluid
WITHDRAWN published on 16.9.1998
Selected format:Marine electric eccentric screw pump
WITHDRAWN published on 31.3.1989
Selected format:Centrifugal and vortex pumps for marine use—General technical specifications
WITHDRAWN published on 31.3.1989
Selected format:Marine sewage treatment system specification
WITHDRAWN published on 31.3.1989
Selected format:Marine sewage treatment equipment specification
WITHDRAWN published on 11.9.2015
Selected format:Ship coatings—Determination of resistance to salt water—Salt water and hot salt water immersion method
WITHDRAWN published on 31.3.1989
Selected format:Terminology of marine machinery--Transmission gear and shafting
WITHDRAWN published on 1.1.1989
Selected format:Latest update: 2026-06-12 (Number of items: 2 281 969)
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