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GB - Chinese national standards - Page 4233

Standards GB - Chinese national standards - Page 4233

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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Publication year
Preview GB/T 43074-2023 7.9.2023
GB/T 43074-2023

Springs—Symbols

Standard published on 7.9.2023

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in 6 working days
Preview GB/Z 43075-2023 7.9.2023
GB/Z 43075-2023

Connections for hydraulic fluid power—Designation and nomenclature

Standard published on 7.9.2023

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in 4 working days
Preview GB/T 43076-2023 7.9.2023
GB/T 43076-2023

CVD diamond tools—Categorization

Standard published on 7.9.2023

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in 4 working days
Preview GB/T 43077.4-2023 7.9.2023
GB/T 43077.4-2023

Connections for hydraulic fluid power—Ports and stud ends with general threads—Part 4: Hex plugs

Standard published on 7.9.2023

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in 3 working days
Preview GB/Z 43078-2023 7.9.2023
GB/Z 43078-2023

Connections for hydraulic fluid power—Assembly instructions for adjustable stud end connectors

Standard published on 7.9.2023

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in 3 working days
Preview GB/T 43079.1-2023 7.9.2023
GB/T 43079.1-2023

Specification for selection and matching of steel pipe flanges, gaskets and fasteners—Part 1:PN designated

Standard published on 7.9.2023

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Preview GB/T 43079.2-2023 7.9.2023
GB/T 43079.2-2023

Specification for selection and matching of steel pipe flanges, gaskets and fasteners—Part 2: Class designated

Standard published on 7.9.2023

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in 4 working days
Preview GB/T 43080.2-2025 31.10.2025
GB/T 43080.2-2025

Fans—Efficiency classification for fans—Part 2: Standard losses for drive components

Standard published on 31.10.2025

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Preview GB/T 43080.3-2023 7.9.2023
GB/T 43080.3-2023

Fans—Efficiency classification for fans—Part 3: Fans without drives at maximum operating speed

Standard published on 7.9.2023

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in 3 working days
Preview GB/T 43080.4-2025 31.10.2025
GB/T 43080.4-2025

Fans—Efficiency classification for fans—Part 4: Driven fans at maximum operating speed

Standard published on 31.10.2025

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