... and drainageconstruction, cable supporting, thickness of pvc plastic pipe. The PVC pipe production line has conical twin-screw extruder, vacuum ... ;2. Rainwater drainage pipelines in building;3. Electrical wiring pipe in building;4. Air conditioning condensate water systems. PVC ... . The weight is light, easy to flaring, bonding, bending, welding, pipe installation workload is only 1 / 2 to the steel ...