Extrusion Line, Plastic Machinery, Single Screw Extruder manufacturer / supplier in China, offering Insulation Pipe Production Line Water Supply Pipe Municipal Engineering Black Jacket Insulation Pipe Extruder 420-2000 mm, Integrated Production Line for Internal and External Anti-Corrosion Coating: Internal Epoxy Powder Spraying and External 3PE Coating Technology, Internal Epoxy Powder Spraying and External 3PE Coating Anti-Corrosion Pipeline Production Line 1000-2400mm and so on.