... 1,suitable for extruder of pipe, plate and special-shaped materials 2,high efficiency 3,low Single-screw Plastic ExtruderAdvantages: This set ... can be used for extruding thermo-plastic such as soft hard polyvinyl chloride (PVC) and polystyrene (PE ... the appropriate auxiliary machine, (including the head of former), it can produce many kinds of plastic products such as film, pipe, board, braid ...