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

介绍了汽车消声器隔板多工序冲压复合模具、工作理。

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

对个试验鉴定仅对多种焊接工艺试验时所进行过程顺序有效。