- pack cyaniding
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цианирование в твёрдой среде
Англо-русский словарь технических терминов. 2005.
Англо-русский словарь технических терминов. 2005.
Case hardening — or surface hardening is the process of hardening the surface of a metal, often a low carbon steel, by infusing elements into the material s surface, forming a thin layer of a harder alloy. Case hardening is usually done after the part in question … Wikipedia