... screw for LDPE film 2.Material:38CrMoAIA,SKD61 3.Suit for pvc pipe,film,sheet,cable.. 4.Long worklife Single Screw Barrel for LDPE film Diameter30mm ... for Injection, Extrusion, and Blow Molding applications; relevant accessories(such as die head, gearbox, filter screen changer and so on); plastic processing machinery ... competitive price, We Emphasis On Cooperation. single screw barrel for LDPE film