Screw Barrel, Shut off Nozzle, Mixing Nozzle manufacturer / supplier in China, offering Conveyor Screw Feeding Spiral Conveying Screw Helical Blade Shaft, Sumitomo Se350hdz-C1600 Screw Barrel with Torpedo Head Screw Tip Set for Sumitomo Injection Machine, Sumitomo Se75s Screw Barrel with Ring Valve Plunger Set for Sumitomo Injection Machine and so on.