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Standards GB - Chinese national standards - Page 4575

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 45751-2025

Additive manufacturing—Process classification and coding

Standard published on 30.5.2025

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GB/T 45752-2025

Mine vehicle fire extinguishing system—Safety technical requirements

Standard published on 30.5.2025

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GB/T 45753-2025

Additive manufacturing—Specification for functionally graded additive manufacturing process

Standard published on 30.5.2025

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GB/T 45754-2025

Technical specifications for equipment of converter primary flue gas dry cleaning and recovery system

Standard published on 30.5.2025

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646.80 USD

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GB/T 45755-2025

Pultruding moulds for fiber reinforced polymer composite plates

Standard published on 30.5.2025

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GB/T 45756-2025

Technical specification of sintered rare earth permanent magnet splicing

Standard published on 30.6.2025

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346.80 USD

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GB/T 45757-2025

Polymer-bonded neodymium iron boron compounds pellets

Standard published on 30.6.2025

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442.80 USD

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GB/T 45758-2025

Determination of bacterial reduction rate by photocatalytic materials under indoor lighting environment—Semi-dry method for estimating antibacterial activity on the actual environmental bacteria contamination surface

Standard published on 30.6.2025

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GB/T 45759-2025

Fine ceramics—Determination of content of coarse particles in ceramic powders—Wet sieving method

Standard published on 30.6.2025

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