The advantage: When switching packaging materials, there is no change in hotmelt variants required.

优势：切换时的包装材料，没有任何变化热熔胶变种需要。

youdao

The advantage: When switching packaging materials, there is no change in hotmelt variants required.

优势：切换时的包装材料，没有任何变化热熔胶变种需要。

youdao