TREA

Extraction of nitrogen

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Industry

  • CPC
  • C21D3/08
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Parent Industries

CCHEMISTRY METALLURGY C21Iron metallurgy C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHER TREATMENTS C21D3/00Diffusion processes for extraction of non-metals Furnaces therefor

Current Industry

C21D3/08Extraction of nitrogen
Industries