Extrusion Line, Plastic Machinery, Single Screw Extruder manufacturer / supplier in China, offering HDPE Pipe Extrusion Line Solid Wall Pipe Extrusion Line Φ 20-Φ 100mm, HDPE Outer Protection Pipe Extrusion Line for Underground Thermal Heating, Hot Water, and Gas Distribution Networks, HDPE Insulated Pipe Outer Sheath Production Line Fully Automatic Vacuum Calibration Large Diameter Pipe Extrusion System and so on.