「SubClass」 in C22 can be selected for this page.

Select the desired 「SubClass」.

  • C22B
  • PRODUCTION OR REFINING OF METALS (making metallic powder or suspensions thereof B22F 9/00; —production of metals by electrolysis or electrophoresis— C25); PRETREATMENT OF RAW MATERIALS
  • C22C
  • ALLOYS (treatment of alloys C21D, C22F)
  • C22F
  • CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS OR NON-FERROUS ALLOYS (processes specific to heat treatment of ferrous alloys or steels and devices for heat treatment of metals or alloys C21D)