Extrusion Line, Plastic Machinery, Single Screw Extruder manufacturer / supplier in China, offering Technology for Preinsulated Pipe Production Line Jacket Dia. (110-550mm), Steel Pipe Inner & Outer Wall Fbe Coating System Line with Advanced Electrostatic Spraying System for Long-Term Corrosion Protection, Automatic Steel Pipe Fbe Anti-Corrosion Coating Line for Oil & Gas Pipelines and so on.