Our products are made of HDPE,use the material of import Metallocene Polyethylene,with the Process of Multilayer coextrusion technology.the Multilayer coextrusion film has the feature of High strength,high barrier,Resistance High temperature. We can make the packaging film with different request from our customers. such as black-white high temperature cook packaging film;milky white high temperature cook packaging film;Matt high temperature cook packaging film. Our products can Resistance High mechanical strength,no Deformation and wont fall colors at the 121°C cooking Environment.the Shelf life can be 3 monthes at common temperature and longer if use black-white film. The company's products through the province and the city health monitoring,suit GB9687-88 standards, safe, health food packaging material. Our products are widely used in liquid soybean milk, peanuts, milk, acidMilk, juice, etc, for all imports, domestic bottling. Recommended for 6 months when you are finished using the seal.