Extrusion Line, Plastic Machinery, Single Screw Extruder manufacturer / supplier in China, offering Prefabricated Polyurethane Spraying Insulation HDPE Winding Protective Jacket Directly Buried Steel Pipe Automatic Equipment, Completely Automatic Production Line for Heating and Cooling Water PU Preinsulated Pipe, PU Foam Spraying Preinsulated Steel Pipe with HDPE Jacket Pipe and so on.
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