Characteristics and application scope of four-side sealing bags
A four-side seal bag consists of four sealing edges, just like two pairs of films sealing the bevel together. This is the origin of four-side sealing bags, so let’s learn about the characteristics and application range of four-side sealing bags! Characteristics of four-side sealing bags: (1) The product has good three-dimensional effect. After packaging the product, it is formed into c