General amount of plastic used for polypropylene is one of the larger varieties, this film is very tough, transparent, gloss translucent, good protection, it is strong at low or high temperatures, breaking, melting, crushing is not rendered, and so on. Suitable for promotional discount stores packaged, efficient packaging, lower transportation costs, products can be wrapped tightly, print products, such as contact name, trademark, manufacturer contact name etc., Not only environmentally sound and affordable, and can greatly improve product effectiveness; sufficient sources of raw materials, low price, in recent years, more and more people pay attention to.