... layer of plastic materials like PVC, PS, OPP, PO, PP, PE, EVA, PC, TPU, PUB, PVUD, etc.The extruder is ... are mainly used to produce cast film (stretch film, wrapping film), and fresh-keeping film. The production of the film has viscosity on one side or ... alloy and nitrogen processed. They are of high hardness, strong erosion resistance and endurance. Advanced automatic control system for temperature ...