Extrusion Line, Plastic Machinery, Single Screw Extruder manufacturer / supplier in China, offering One-Step Pert PU Insulated Extrusion Pipe Manufacturing Line for Hot Water, One-Step Pert PU Insulated Pipe Line with PLC Intelligent Control System, Fiber-Reinforced Pert Pipe Production Line with Integrated PU Foam Insulation Technology and so on.