Screw Barrel, Granulation Screw Barrel, Conical Twin Screw Barrel manufacturer / supplier in China, offering 120mm Diameter Extruder Screw and Barrel with Mixing and Shearing Sections, Zhoushan Factory Direct Single Screw Barrel for Recycling HDPE Granulation Plastic Extruder Machine Customized, Extrusion Screw Barrel/Screw Barrel for PP PE PPR Pipe and so on.