SJZ Conical Twin Screw Extruder(Conical Twin Screw Extruder,plastic extruder,screw extruder) SJZ Conical Twin Screw Extruder(Conical Twin Screw Extruder,plastic extruder,screw extruder)SJZ series conical twin screws ... plastic pipe, profile, panel, plate, and it can also be used at palletizing machine. it has PLC/PCC control or ABB transducer ...