Single screw extruder can be used for extruding soft and hard thermoplastics, such as polyviyl chloride (PVC), polyethylene etc. Single screw extruder is mainly used in ... machine (including shaping machine head) to produce several kinds of plastic products, for example: Film, pipe, rod, plate, thread, cable insulating ... steady operation, large loading, long life and so on. Single-Screw Extruder