Heat shrinkable film is widely used: food, medicine, disinfection tableware, stationery, gifts, prints, metal plastic products, telephones, electronic appliances and so on various product packaging, especially in the irregular shape of goods or merchandise Combined (cluster) packaging, both to meet the commodity moisture dust, touch substitution, transparent display and other functions, but also increase the attractiveness of the product appearance, can also be used in place of all kinds of carton packaging not only save costs, but in line with the trend of shrink film packaging (bag) can be processed into: pocket, arc-shaped bag, trapezoid bag, bags, and other three-dimensional shaped bag. In addition to use as shrink film shrink labels, but now it began to be used on the packaging of household goods. Because it can avoid the impact of protective packaging materials, rain, moisture, rust, but also make the fine print packaging products to win customers, but it is a good way to show a good image of the manufacturer