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nitrogen hydrogen

nitrogen hydrogen, Total:3 items.

In the international standard classification, nitrogen hydrogen involves: Heat treatment, Testing of metals.

Professional Standard - Machinery, nitrogen hydrogen

• JB/T 7530-2007 General technical requirements for argon, nitrogen and hydrogen gases used in heat treatmen
• JB/T 7530-1994 General technical conditions of argon, nitrogen and hydrogen for heat treatment

Group Standards of the People's Republic of China, nitrogen hydrogen

• T/CNIA 0016-2019 Determination of Hydrogen Chloride, Nitrogen, Oxygen and Total Carbon Content in Recycled Hydrogen for Polysilicon by Gas Chromatography

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