... extrusion line plastic pipe production line xps foam profile rigid pvc profile extrusion line upvc foam core pipe polycarbonate extrusion line ... of the conical twin-screw extruder, a vacuum forming machine, a traction machine, a cutter, etc. The twin-screw extruder ... ,granules,profiles,film ,equipped with the vacuum forming machine,the traction machine,the cutter and the stacking frame . The conical ...