We need your consent to use the individual data so that you can see information about your interests, among other things. Click "OK" to give your consent.
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
Hexagon flange bolts--Heavy series--Product grade B
Standard published on 17.1.1986
Selected format:Hexagon flange bolts--Heavy series--Product grade B
Standard published on 17.1.1986
Selected format:China Standard Book Number
Standard published on 18.10.2006
Selected format:Trapezoidal screw threads—Part 1: Profiles
Standard published on 9.3.2022
Selected format:Trapezoidal screw threads—Part 2: General plan
Standard published on 9.3.2022
Selected format:Trapezoidal screw threads—Part 3: Basic dimensions
Standard published on 9.3.2022
Selected format:Trapezoidal screw threads—Part 4: Tolerances
Standard published on 9.3.2022
Selected format:Qinchuan cattle
Standard published on 12.10.2022
Selected format:Rolling bearings—Needle roller bearings with machined rings—Boundary dimensions, geometrical product specifications (GPS) and tolerance values
Standard published on 19.11.2020
Selected format:Files--General technical requirements
Standard published on 27.1.2003
Selected format:Latest update: 2026-08-12 (Number of items: 2 292 463)
© Copyright 2026 NORMSERVIS s.r.o.