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          Parallel Twin Screw Barrel


          Technology Parameter:
            Diameter: Φ35/35~Φ250/250 (according to the demands of customers)
            L/D Ratio: L/D=16~35 (according to the demands of customers)
            Nitriding layer depth: 0.5~0.8mm
            Nitriding layer hardness: >950HV
            Nitriding brittleness: <Grade two
          Screw material: 38CrMoAlA, special alloy can be welded on the flight of screw.
          Barrel material: 38CrMoAlA, imported alloy steel can be used on feeding hole .
            The compression ratio of screw can be designed according to different raw materials and requirements of clients.

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