The shrink film wrapping the products , then heat to wrap up, make wrappings shrink and wrap up in urgent product or package, fully show the appearance of articles, improve the sales exhibition of articles, in order to increase the beautiful and value sense; Meanwhile, articles after packing can be sealed, damp proof, antipollution, and protect goods from and come from the external impact , having certain buffer, it scattered to especially fly when while using the packaging of the glass ware , can prevent the container from being broken , in addition, can lower products dismantling , stolen possibility ; Shrink membrane products produce certain pulling force when shrinking , wrap up in one group article packed to want urgent, the products can be applied to the cosmetics extensively, light industry, shrink packaging of articles , such as food beverage , candy , cultural goods , industrial art , printed matter , medical products , chemical industry , five metals and electric component ,etc.