... Key words: Exruder screw barrel, screw barrel for exruder machine Specification available:1. Diameter of screw: D15-D300mm2. Length of ... mm3. L/D ratio of screw: 15 - 50About Extruder machine screw barrelGrade available:1. Standard grade: 38CrMoAlA + nitriding 96 ... NPM, BOY, Husky, Fanuc, Billion, Sumitomo, Nippon Steel, Toshiba, Nissei, Toshiba, Mitsubishi etc. We also can supply all types of screw ...