1) Plastic type:PVC,PE,PP,ABS,PS,PET 2) Single screw 3) Easy maintenance 4) Warranty: 2 years SJ series single screw stem extruder Description: SJ series single screw stem extruder is mainly composed of barrel screw, momentum driving system, heating, cooling, and electric controllers etc. It mainly used in plasticizing and extruding of PVC, PE, PP, ABS, PS, PET pipes, plates, sheets, film, ...