The machine winding film is a kind of packaging method that wraps the goods tightly for transportation and storage under normal temperature by using the deformation stress generated by the forced stretching of the film by mechanical stretching device or hand. It is a very popular packaging form in the world. Imported resin and advanced flow diffractive film extrusion process are adopted. It has the characteristics of good tensile property, tear resistance, strong penetration resistance, high transparency, good self-adhesive property, high retraction rate, tight packaging and no looseness. It can be widely used for single or tray packaging and other strapping packaging of chemical raw materials, chemical fertilizers, food, mechanical and electrical products, light textile products, etc.