Plastic PVC Twin-Screw Extruder, Plastic extruder,Conical twin-screw extruder, conical double screw extruder Plastic PVC Twin-Screw Extruder, Plastic extruder,Conical twin-screw extruder, conical double screw extruderFeatures and application:1. ... controller, vacuum exhausting device,suitable mould and downstream auxiliary machine, you can directly produce plasticpipes, plates, profiles and ...