Surface roughness of hardened zone of the ball head pin has been improved on by the use of inert gas …

在感应加热过程中采用惰性气体和改进的工装夹具改善了淬火区的表面粗糙度。

youdao

Surface roughness of hardened zone of the ball head pin has been improved on by the use of inert gas …

在感应加热过程中采用惰性气体和改进的工装夹具改善了淬火区的表面粗糙度。

youdao