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GB/T Recommended National Standards

Browse selected GB/T standards used in quality, testing, product compliance, and China market-entry workflows.

GB/T 34193-2017

Published

Guides for energy efficiency assessment of blast furnace process

Issued: 2017-09-07
Effective: 2018-06-01

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GB/T 20887.6-2017

Published

Continuously hot rolled high strength steel sheet and strip for automobile—Part 6: Complex phase steel

Issued: 2017-09-07
Effective: 2018-06-01

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GB/T 34107-2017

Published

Seamless precision stainless steel pipes for rail transit vehicle braking system

Issued: 2017-07-31
Effective: 2018-04-01

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GB/T 33878-2017

Published

Steel cross wedge rollings—Technological design principle

Issued: 2017-07-12
Effective: 2018-02-01

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GB/T 33965-2017

Published

Metallic materials—Tensile testing—Determination of thickness reduction ratio for rectangular specimen

Issued: 2017-07-12
Effective: 2018-04-01

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GB/T 4291-2017

Published

Synthetic cryolite

Issued: 2017-07-12
Effective: 2018-02-01

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GB/T 19154-2017

Published

Building maintenance unit

Issued: 2017-07-12
Effective: 2018-08-01

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GB/T 33921-2017

Published

Underground rubber-tyred mining machines—Performance requirements and test procedures for brake systems

Issued: 2017-07-12
Effective: 2018-02-01

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GB/T 4182-2017

Published

Molybdenum wire

Issued: 2017-07-12
Effective: 2018-06-01

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