Extrusion Line, Plastic Machinery, Single Screw Extruder manufacturer / supplier in China, offering Large Size HDPE Solid Wall Water/Gas Supply Pipe Extrusion Line, PU Foaming Preinsulation HDPE Jacket Protective Tube Fitting Elbow, Puf Pre-Insulated Pipe Plastic Protective Jacket Casing Shell Extruder Machine (960-1680mm) and so on.