ARCOR® C, N & V. Thermochemical treatments (nitriding, nitrocarburizing, oxynitrocarburizing) using molten salt baths to improve friction and corrosion resistance properties of steels and cast irons. Developed by Hydromécanique Et Frottement (HEF) in France.Arcor C2处理说白了就是盐浴渗碳处理,由法国HEF公司发明的一种表面处理技术.