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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
Tool chucks for flated parallel shank tools
WITHDRAWN published on 17.6.1985
Selected format:Small type parallel shank twist drills
WITHDRAWN published on 1.1.1985
Selected format:Small type twist drills with oversize parallel shank
WITHDRAWN published on 1.1.1985
Selected format:Parallel shank twist drills—Part 1:The types and dimensions for small type twist drills with oversize parallel shank
WITHDRAWN published on 5.7.1996
Selected format:Parallel shank twist drills—Part 2:The types and dimensions for parallel shank stub series twist drills
WITHDRAWN published on 5.7.1996
Selected format:Parallel shank twist drills—Part 3:The types and dimensions for parallel shank jobber series twist drills
WITHDRAWN published on 5.7.1996
Selected format:Parallel shank twist drills—Part 4:The types and dimensions for parallel shank long series twist drills
WITHDRAWN published on 5.7.1996
Selected format:Parallel shank twist drills—Part 5:The types and dimensions for extra long parallel shank twist drills
WITHDRAWN published on 5.7.1996
Selected format:Extra long parallel shank twist drills
WITHDRAWN published on 1.1.1985
Selected format:-
WITHDRAWN published on 1.1.1985
Selected format:Latest update: 2026-04-21 (Number of items: 2 274 412)
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