... 630mm 3>Material: PVC, CPVC, UPVC 4>One Year Quality Gurantee PVC, CPVC, UPVC pipe production line, pipe making ... machineSJSZ series plastic pipe extrusion line is specializing in manufacturing PVC pipes ... sleeves of wires and cables, etc.Features of production line:This production line consists of conical (parallel) double-screw extruder, ...