... CE ISO9001 approved 2.Rich experience, qualified machines 3.turn-key project SJPGZ Series PVC/CPVC Plastic Pipe Extrusion Line SJPGZ series plastic pipe ... line consists of conical (parallel) double-screw extruder, vacuum sizing platform, tractor, cutting machine, stacker, etc. The conical (parallel) ... equipped. The property of the production line is reliable and the output is high. In accordance with ...