It has the advantages of bright color, beautiful appearance, light weight, high ratio intension, a certain hardness, no-rusting, waterproof, corrosion resistance, acid and alkali resistance, low water absorption and hygroscopic nature, no reducing strength after immersing in water, and safe operation and so on. It is widely applied in the package of daily necessities, textile, clothing, telecommunications and meter, bookstore, post office, and package of exported goods.