... screw and barrel for extruders Screw Diameter:20-500mm Maximun screw length: 10000mm Barrel inner bore dia500mm Single screw and barrel for extrudersSize:Screw Diameter:Φ20-Φ500mmMaximun screw ... plating thickness: 0.01-0.1mm Fully hard screw(wear-proof, corrosion-proof, heatproof, high-pressure ... ABS,AS,PS etc.Detailed Product Description1.Bimetallic screw barrel 2.Hardness:HRC58-68,HV960-1060 3.Wear- ...