Opp is oriented tensile polypropylene film with high transparency and brittleness. The OPP sheet is folded in half and then the side edge is sealed, and the self-adhesive seal is stuck at the tongue opening. When using, the product is put into the product, and the tongue is folded in half after the protective skin on the seal surface is torn off. It is easy to use and beautiful. It is widely used in clothing, food, printing, stationery, cosmetics, paper and other industries. We can also print various patterns, butterfly holes and aircraft holes according to customers' needs.