Extrusion Line, Plastic Machinery, Single Screw Extruder manufacturer / supplier in China, offering NBR PVC Rubber Foam Insulation Tube and Sheet Production Line for HVAC and Thermal Insulation Industry, Electrofusion Tape Belt Welding Manufacturer for Connection of PE Structural Wall Pipe, HDPE Seamless Electrofusion Sleeves Tape for Pre-Insulated Pipe Girth Welding and so on.