... 15 months PVC Pipe Plastic Machine Extrusion Line Specifications1.PVC pipe line is mainly used in the production of double PVC pipe water ... adopts SGC63-SGC630 and models:3.Adopts conical twin-screw extruder features:4.Adopts unique design of screw, material in ... , beautiful appearance, smooth operation, the noise is small,The machine adopts copper aluminum heater, wind cooling system, heating, cooling ...