Extrusion Line, Plastic Machinery, Single Screw Extruder manufacturer / supplier in China, offering Handheld HDPE PP Plastic Extrusion Welder for Sheet, Pipe, and Tank Welding, Three-Roll Calender of Plastic Sheets/ Boards Extrusion Line, Plastic PVC / ABS / PP /PS Sheet / Board / Plate Extruder Extrusion Production Line and so on.