Extrusion Line, Plastic Machinery, Single Screw Extruder manufacturer / supplier in China, offering Portable Plastic Welding Tools Hot Air Blower Extrusion Hand Welder Machine, Portable PPR/PE/PP/HDPE Extrusion Welding Gun Welder Machine, Plastic Welding Gun Machine / Extruder Motor Power 1100W Hand Welding and so on.