Extrusion Line, Plastic Machinery, Single Screw Extruder manufacturer / supplier in China, offering HDPE PE Casing Shell Black Jacket Pipe Extruder Line for District Heating Pipe, HDPE Jacket Shell Casing Extrudtion Machinery for Plastic Co-Extruder PU Foaming Pre-Insulated Pipe, Industrial Heat Shrink Wrap Tape for Water Oil Gas Pipeline Anticorrosion Coating and so on.