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GB - Chinese national standards - Page 172

Standards GB - Chinese national standards - Page 172

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 12234-2019 18.10.2019
GB/T 12234-2019

Bolted bonnet steel gate valves for petroleum and natural gas industries

Standard published on 18.10.2019

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electronic design (pdf) (622.80 USD)


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622.80 USD


in 5 working days
Preview GB/T 12235-2007 18.4.2007
GB/T 12235-2007

Steel globe valves and lift check valve for petroleum, petrochemical and allied industries

Standard published on 18.4.2007

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electronic design (pdf) (330.00 USD)


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330.00 USD


IN STOCK
Preview GB/T 12235-2025 31.10.2025
GB/T 12235-2025

Steel globe valves and lift check valve for petroleum, petrochemical and allied industries
Execute Date: may 2026

Standard published on 31.10.2025

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electronic design (pdf) (622.80 USD)


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622.80 USD


in 5 working days
Preview GB/T 12236-2008 2.2.2008
GB/T 12236-2008

Steel swing check valve for petroleum, petrochemical and allied industries

Standard published on 2.2.2008

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electronic design (pdf) (358.80 USD)


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358.80 USD


in 3 working days
Preview GB/T 12236-2025 31.10.2025
GB/T 12236-2025

Steel swing check valve for petroleum, petrochemical and allied industries
Execute Date: may 2026

Standard published on 31.10.2025

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electronic design (pdf) (550.80 USD)


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550.80 USD


in 4 working days
Preview GB/T 12237-2021 9.3.2021
GB/T 12237-2021

Steel ball valves for petroleum, petrochemical and allied industries

Standard published on 9.3.2021

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electronic design (pdf) (490.80 USD)


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490.80 USD


in 4 working days
Preview GB/T 12238-2008 23.12.2008
GB/T 12238-2008

Flanged and wafer resilient seal butterfly valves

Standard published on 23.12.2008

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electronic design (pdf) (126.00 USD)


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126.00 USD


IN STOCK
Preview GB/T 12239-2008 23.12.2008
GB/T 12239-2008

Industrial valves - Diaphragm valves made of metallic materials

Standard published on 23.12.2008

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electronic design (pdf) (394.80 USD)


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394.80 USD


in 3 working days
Preview GB/T 1224-2016 29.8.2016
GB/T 1224-2016

Vocabulary and character for geometrical optics

Standard published on 29.8.2016

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electronic design (pdf) (1078.80 USD)


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1 078.80 USD


in 7 working days
Preview GB/T 12240-2008 25.6.2008
GB/T 12240-2008

Iron plug valves

Standard published on 25.6.2008

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electronic design (pdf) (502.80 USD)


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502.80 USD


in 3 working days

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