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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
Measuring method of cleanliness for tractors
WITHDRAWN published on 1.1.1986
Selected format:-
WITHDRAWN published on 1.1.1986
Selected format:Tractors and machinery for agriculture and forestry-Wheel-to-hub fixing dimensions
WITHDRAWN published on 10.8.1998
Selected format:Agricultural tractors and machinery hydraulic quick couplers for general purposes--Specifications
WITHDRAWN published on 1.1.1986
Selected format:Agricultural tractors--Track widths
WITHDRAWN published on 1.1.1986
Selected format:Agricultural tractors--Operatorseating accommodation--Dimensions
WITHDRAWN published on 1.1.1986
Selected format:Agricultural tractors—Operator""s seating accommodation—Dimensions
WITHDRAWN published on 21.2.1997
Selected format:-
WITHDRAWN published on 1.1.1986
Selected format:Agricultural tractors--Operator""s seat index point
WITHDRAWN published on 3.4.1986
Selected format:Agricultural tractors--Operatorseat belt
WITHDRAWN published on 1.1.1986
Selected format:Latest update: 2026-04-19 (Number of items: 2 274 482)
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