The article has described the structure and working principle of multiprocess composite die for automobile deafener closure.

介绍了汽车消声多工序冲压复合模具的结构、工作理。

The qualification of such a test is only valid for the process sequence carried out during the multiprocess procedure test.

对这样一个试验的鉴定仅对多工艺试验时所进行的过程顺序有效。