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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
Brass sheet
WITHDRAWN published on 31.3.1989
Selected format:Calcium magnesium phosphate
WITHDRAWN published on 14.3.2006
Selected format:Superphosphate
WITHDRAWN published on 14.3.2006
Selected format:RubberCoated fabricIsolating tape
WITHDRAWN published on 14.3.2006
Selected format:Earth-moving machinery—Lighting, signaling, and marking lights, and reflex-reflector devices
WITHDRAWN published on 19.7.2006
Selected format:Diesel engine oils for agricultural use
WITHDRAWN published on 18.7.2006
Selected format:Special brass sheets
WITHDRAWN published on 31.3.1989
Selected format:Lead-free solders
WITHDRAWN published on 22.8.2006
Selected format:Hydraulic fluid power—Assembled systems—Verification of cleanliness
WITHDRAWN published on 22.8.2006
Selected format:The specification for limit on harmful element content of the heavy metal concentrates products
WITHDRAWN published on 24.8.2006
Selected format:Latest update: 2026-06-21 (Number of items: 2 283 476)
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