Spot Welding Electrode, Screw and Barrel for Extrusion, Spare Parts for Extruder manufacturer / supplier in China, offering Modular Type Parallel Twin Screw Element for Extruder Repairing in Plastic Recycling, High-Efficiency Ceramic-Lined Twin Screw Barrel for Pharmaceutical Tablet Coating, Customized Twin Screw Barrel for Food and Pharmaceutical Industries and so on.