... casting technology of barrel for the excellent performance on wear-proof.Especially application:Rubber,various high glass fiber, ... solved the technical problem of low foaming, high foaming,high filling, wear and corrosion.Nitride Case Depth0 ... experiences: CERTIFICATION: We OSD SCREW can make any specification of extruder screw barrel and injection screw barrel for Haitian, Demag, Engle, Klauus ...