... SJ series Plastic pipe Extruder adopts well-set perfect-designed screw, barrel and gear box are processed by carburization, and are equipped ... with stable control system. Own-brand barrel and screw, designed and manufactured by ourselves, best and reliable quality ... could be used in processing and molding PVC, PE, PERT, PET, PP, PC, PA, PMMA, ABS pipes, profiles, sheets and ...