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十字交叉封口包装袋 / Cross Package

十字交叉封口包装袋
十字交叉封口包装袋

Cross sealing packing bag makes the action of get something from a package bag different, it is easier when open the package bag and more convenient when you want to pour out the things inside.

University

Nanjing Forestry University

Nanjing Forestry University
Nanjing, China

Jianle Ji,
Nanjing Forestry University