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Standards GB - Chinese national standards - Page 385
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
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GB/T 1438.1-2008
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Taper shank twist drills - Part 1: The types and dimensions for Morse taper shank twist drills
Standard published on 4.11.2008
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GB/T 1438.2-2008
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Taper shank twist drills - Part 2: The types and dimensions for long Morse taper shank twist drills
Standard published on 4.11.2008
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GB/T 1438.3-2008
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Taper shank twist drills - Part 3: The types and dimensions for lengthened Morse taper shank twist drills
Standard published on 4.11.2008
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GB/T 1438.4-2008
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Taper shank twist drills - Part 4: The types and dimensions extra-long for Morse taper shank twist drills
Standard published on 4.11.2008
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GB/T 14381-1993
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Generic specification for stored program control digital private automatic branch telephone exchange system
Standard published on 14.5.1993
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GB/T 14382-2008
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Tee strainers for fluids for pipes
Standard published on 25.8.2008
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GB/T 14383-2021
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Forged fittings, socket-welding and threaded
Standard published on 9.3.2021
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GB/T 14383-2021/XG1-2025
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Standard published on 9.3.2021
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GB/T 14384-2010
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Woodworking machines—General specifications
Standard published on 10.11.2010
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GB/T 14385-2025
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Thickness planing machines for woodworking—Vocabulary and accuracy
Standard published on 31.10.2025
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