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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
Hydraulic fluid power--General rules of technical requirements for hydraulic components
WITHDRAWN published on 12.6.1987
Selected format:Hydraulic fluid power--Positive displacement pumps andmotors--Determination of derived capacity
WITHDRAWN published on 12.6.1987
Selected format:Fluid power systems and components--Connectors and associated components--Nominal pressures
WITHDRAWN published on 12.6.1987
Selected format:Fluid power systems and components—Connectors and associated components—Nominal pressures
WITHDRAWN published on 10.3.2002
Selected format:Fluid power systems and components - Connectors and associated components - Nominal pressures
WITHDRAWN published on 14.1.2008
Selected format:Fluid power systems and components--Cylinders--Nominal pressures
WITHDRAWN published on 12.6.1987
Selected format:Hydraulic fluid power--Hose assemblies--Method of test
WITHDRAWN published on 12.6.1987
Selected format:Hydraulic fluid power—Hose assemblies—Test methods
WITHDRAWN published on 14.1.2008
Selected format:Strengthened cap head square neck bolts
WITHDRAWN published on 1.3.1993
Selected format:Pneumatic fluid power-five-port directional control valves--Mounting surfaces
WITHDRAWN published on 1.1.1987
Selected format:Latest update: 2026-03-27 (Number of items: 2 269 573)
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