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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
Chemical reagent - Urea
Standard published on 15.5.2008
Selected format:Tractor terminology—Part 1: Complete tractor
Standard published on 31.10.2025
Selected format:Tractor terminology—Part 2: Transmission system
Standard published on 31.10.2025
Selected format:Tractor terminology - Part 3: Braking system
Standard published on 21.3.2007
Selected format:Tractor terminology - Part 4: Running gears and undercarriages
Standard published on 21.3.2007
Selected format:Tractors terminology - Part 5: Steering system
Standard published on 21.3.2007
Selected format:Tractor terminology - Part 6: Hydraulic hitch system and drawbar, hook
Standard published on 21.3.2007
Selected format:Tractor terminology - Part 7: Cab, seat and sheet metal
Standard published on 21.3.2007
Selected format:Tractor terminology—Part 8:Electronic control system
Standard published on 31.12.2021
Selected format:Operating requirements for tractors power take-off and drawbars
Standard published on 11.3.2003
Selected format:Latest update: 2026-11-10 (Number of items: 2 209 227)
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