本发明公开了一种气门热校直工艺方法属于发动机气门的制作方法，特别是校直气门的方法。
The invention discloses an air valve heat-straightening process method which belongs to a manufacturing method of an engine air valve, in particular to a method for straightening the air valve.
本发明公开了一种气门热校直工艺方法属于发动机气门的制作方法，特别是校直气门的方法。
The invention discloses an air valve heat-straightening process method which belongs to a manufacturing method of an engine air valve, in particular to a method for straightening the air valve.
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