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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
Thermal insulation specification for steam turbine
WITHDRAWN published on 1.1.1987
Selected format:Multiple controllers in a CAMAC crate
WITHDRAWN published on 26.3.1987
Selected format:CAMAC-Serial highway interface systems
WITHDRAWN published on 26.3.1987
Selected format:Subroutines for CAMAC
WITHDRAWN published on 26.3.1987
Selected format:Hydraulic brake rubber cups for automobiles
WITHDRAWN published on 1.1.1987
Selected format:Rubber diaphragms for brake chamber in automobiles
WITHDRAWN published on 1.1.1987
Selected format:Rubber sealing strips of doors and windows for vehicles
WITHDRAWN published on 1.1.1987
Selected format:Rubber mixture of O-rings seals for fuel
WITHDRAWN published on 1.1.1987
Selected format:Rubber hose--Glossary of terms
WITHDRAWN published on 26.3.1987
Selected format:Rubber and plastics hoses and hose assemblies—Vocabulary
WITHDRAWN published on 15.10.2002
Selected format:Latest update: 2026-04-01 (Number of items: 2 270 267)
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