세분류 · NACE Rev. 2.1 / TEÁOR'25
25.52 금속 열처리업
Heat treatment of metals
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이 분류에 포함되는 것
- general activities for the heat treatment of metals
- thermomechanical heat treatment of metals (e.g. preheating, annealing, hardening, tempering, quenching, deep freezing of metal)
- thermochemical heat treatment of metals (e.g. carburising, carbonitriding, nitrocarburising, nitriding, oxidising, sulphidising, boriding)