二重卷边是金属罐制造工艺流程中最重要的环节，卷封滚轮是封罐机上最核心、最重要的零件之一。

Double-seam is the most important link in canning manufacture technical process, and the seam roller is one of the most core and important components on the can seamer.

youdao

二重卷边是金属罐制造工艺流程中最重要的环节，卷封滚轮是封罐机上最核心、最重要的零件之一。

Double-seam is the most important link in canning manufacture technical process, and the seam roller is one of the most core and important components on the can seamer.

youdao