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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
Inverter of wind and solar energy supply power system for off-grid—Part 2:Testing method
WITHDRAWN published on 20.7.2006
Selected format:Petroleum and natural gas industries—Reciprocating compressors
WITHDRAWN published on 20.7.2006
Selected format:Milling cutters—Designation—Part 1:Shank type end mills of solid or tipped design
WITHDRAWN published on 20.7.2006
Selected format:Milling cutters—Designation—Part 2:Shank type and bore type milling cutters with indexable inserts
WITHDRAWN published on 20.7.2006
Selected format:Long full-diameter shank taps with recess
WITHDRAWN published on 20.7.2006
Selected format:Circular dies for taper pipe threads—R series
WITHDRAWN published on 20.7.2006
Selected format:Sheep with long-staple wool
WITHDRAWN published on 27.10.1980
Selected format:Taps for parallel and taper pipe threads—General dimensions and marking
WITHDRAWN published on 20.7.2006
Selected format:Petroleum servicing and workover rigs--Types and basic parameters
WITHDRAWN published on 1.1.1989
Selected format:Agricultural machinery--Agricultural trailers and trailed equipment--Drawbar jacks
WITHDRAWN published on 19.7.2006
Selected format:Latest update: 2025-12-28 (Number of items: 2 253 436)
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