... , UPVC Pipe Extrusion Line, PVC Pipe Making Machine consists of conical (parallel) double PVC, CPVC, UPVC Pipe Extrusion Line, PVC Pipe Making MachineSJPGZ ... .Features of production line:This production line consists of conical (parallel) double-screw extruder, vacuum sizing platform, tractor, cutting machine, stacker, etc. The ...