0836449 发表于 2009-3-18 14:01:42

DIN 17022-4 Heat treatment of ferrous materials - Methods of heat treatment - Pa

钢铁材料热处理.热处理方法.第4部分:渗氮和硝基渗碳
Heat treatment of ferrous materials - Methods of heat treatment - Part 4: Nitriding and nitrocarburizing
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