SJSZ SERIES CONICAL TWIN-SCREW PLASTIC EXTRUDER CONICAL TWIN-SCREW PLASTIC EXTRUDER CONICAL TWIN-SCREW PLASTIC EXTRUDERFuncitions and Construction:The series Extruders with apporpriate screws,dies and other auxiliaries can directly convert thermoplastic expecialy RPVC powder into Pipe,plate sheet,film and profile,and also Provide function of modifying and Pelleting.The extruders drived by D.C ...