PVC Pipe Extrusion Line, UPVC, CPVC Pipe Making Machine, PVC Pipe Production Line, Plastic Machinery PVC Pipe Extrusion Line, UPVC, CPVC Pipe Making MachineSJSZ series plastic pipe extrusion line is specializing in manufacturing PVC pipes of ... wires and cables, etc.Features of production line:This production line consists of conical (parallel) double-screw extruder, vacuum sizing platform, tractor, ...