Extrusion Line, Plastic Machinery, Single Screw Extruder manufacturer / supplier in China, offering 3PE Heat Shrinkabe Sleeve for Pipeline Girth Weld Field Joint Anti-Corrosion, Large Diameter HDPE Black Jacket Pipe Extrusion Machine for Underground Thermal Insulation, Oil Gas PE Adhesive Two-Layer Heat Shrink Tape for Pipeline Welding Protective and so on.