... PARTS:composed of the conical twin-screw extruder,vacuum forming table,dragger etc Production Line for PVC Large Diameter(CE) ... PARTS:composed of the conical twin-screw extruder, vacuum forming table, dragger, cutter, stirring up rack etc.Features and application : GF ... is composed of the conical twin-screw extruder, vacuum forming table, dragger, cutter, stirring up rack etc. (2) The screws extruder ...