-
热处理：真空，渗碳，渗氮，真空热处理，超低温处理等。
Hot treatment: vacuum, carburizing, nitriding, vacuum heat treatment and cryogenic treatment etc.
youdao
-
热处理：真空，渗碳，渗氮，真空热处理，超低温处理等。
Hot treatment: vacuum, carburizing, nitriding, vacuum heat treatment and cryogenic treatment etc.
youdao