With regard to process, the heat treatment adopts the high-frequency quenching machine tool for the high-frequency quenching;

在工艺上，热处理利用高频淬火机床进行高频淬火；

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With regard to process, the heat treatment adopts the high-frequency quenching machine tool for the high-frequency quenching;

在工艺上，热处理利用高频淬火机床进行高频淬火；

youdao