此文介绍了连续挤压内凸筋口琴管模具的设计方法及其模具芯头的冷挤压加工。

This paper is about die tongue making: the design method and cold-press formation.

youdao

此文介绍了连续挤压内凸筋口琴管模具的设计方法及其模具芯头的冷挤压加工。

This paper is about die tongue making: the design method and cold-press formation.

youdao