Extrusion Line, Plastic Machinery, Single Screw Extruder manufacturer / supplier in China, offering Steel Pipe External and Internal Coating Production Line for 3lpe/Fbe/Epoxy Powder Applications, Automatic 2lpe 3lpe Fbe Epoxy Powder Coating Line for External and Internal Steel Pipe Anti-Corrosion, Plastic Welding Tool Plastic Welder for HDPE Geomembrane and Pipe Joints and so on.