Stretch film is also called linear low density polyethylene (LLDPE) stretch film. It is processed with linear low density polyethylene (LLDPE) as the main raw material. Stretch film has the characteristics of non-toxic, environmentally friendly, cost-effective, transparent appearance and easy to use. It has the advantages of impact resistance, good tearing, high viscosity, dustproof, and anti-fog. It is used in product integration schemes, compression fixation, internal Used in circulation. At present, it has been widely used in various fields of chemical raw materials, food, construction, equipment and so on.