UPVC profile extrusion line PVC profile extrusion line upvc/pvc profile production line plastic profile extrusion line windows and door profile extrusion line The features of UPVC/PVC Profile Extrusion Production Line : (1) stable plasticization (2)high output (3)long life service This line consists of (1) control system (2) conical twin screw (3) extrusion die (4) calibration unit (5) haul off unit (6) film covering unit and stacker.