The steps for punching and extruding the splined hole can be finished by a special die which is designed by the invention by a press.
冲挤花键孔的步骤可采用本发明所设计的专用模具在压床下完成。
The steps for punching and extruding the splined hole can be finished by a special die which is designed by the invention by a press.
冲挤花键孔的步骤可采用本发明所设计的专用模具在压床下完成。
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