steel taper drift 钢制推拔冲销
·2,447,543篇论文数据,部分数据来源于NoteExpress
The steel and the heat treatment process of fine heavy load drift was determined by means of production tests. And the satisfactory result was obtained.
经应用试验,确定了精密重载冲孔模的用材及热处理工艺,获得满意的效果。
youdao
应用推荐
模块上移
模块下移
不移动