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Standards GB - Chinese national standards - Page 5170
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 7217-2013
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Rolling bearings - Radial ball bearings with flanged outer ring - Flange dimensions
Standard published on 18.9.2013
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GB/T 7218-2013
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Rolling bearings - Miniature radial ball bearings with flanged outer ring - Boundary dimensions
Standard published on 18.9.2013
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GB/T 7220-2004
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Geometrical Product Specifications(GPS)--Surface texture:Profile method--Surfaceroughness--Terminology--Measurement of surface roughness parameters
Standard published on 11.11.2004
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GB/T 7223-2008
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Rongchang Pig
Standard published on 17.6.2008
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GB/T 7223-2026
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Livestock and poultry breed (synthetic lines)—Rongchang pig
Execute Date: september 2026
Standard published on 27.2.2026
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GB/T 7227-2006
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Forestry machineryGraphical symbols
Standard published on 12.7.2006
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GB/T 7230-2008
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Gas detector tube measurement system
Standard published on 23.12.2008
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GB/T 7232-2023
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Metal heat treatment—Terminology
Standard published on 6.8.2023
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GB/T 7233.1-2023
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Steel castings—Ultrasonic testing—Part 1:Steel castings for general purposes
Standard published on 17.3.2023
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GB/T 7233.2-2023
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Steel castings—Ultrasonic testing—Part 2:Steel castings for highly stressed components
Standard published on 23.5.2023
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