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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
Discard qualification for mechanical parking system
Standard published on 31.10.2025
Selected format:Hydraulic fluid power—Mounting dimensions of screw-in cartridge valves—Part 1:Metric threads
Standard published on 31.10.2025
Selected format:Additive manufacturing of metals—Orientation and location dependence of mechanical properties for finished parts
Standard published on 31.10.2025
Selected format:Medium-transfer units for tool interfaces—Part 1Transfer units for hollow taper shanks in accordance with the GB/T 19449 series
Standard published on 31.10.2025
Selected format:Safety of woodworking machines—Edge banding machines fed by chains
Standard published on 31.10.2025
Selected format:Safety of woodworking machines—Wide belt sanding machines and surface treating machines
Standard published on 31.10.2025
Selected format:Standard test methods for sealability of gaskets at elevated temperature for pipe flanges
Standard published on 31.10.2025
Selected format:Satety of woodworking machines—Circular sawing machines with travelling table
Standard published on 31.10.2025
Selected format:Liquid-liquid separators—Test method for energy efficiency
Standard published on 31.10.2025
Selected format:Rolling bearings—Cylindrical thrust roller bearings—Boundary dimensions
Standard published on 12.5.2017
Selected format:Latest update: 2026-11-10 (Number of items: 2 209 227)
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