Conical Twin Screw and Barrel Conical Twin Screw and BarrelSize: 45/90, 51/105, 65/132,80/156 TECHNICAL ... Chrome plating thickness: 0.01-0.1mm Bimetal coating thickness: 1.5-2.0mm Material: Base material 38CrMoAIA, welded inlay on ... alloy can be improvde abrasion performance. Twin screw and barrel made: CINCINNATI, BATTENFELD, KRUSSMAFFEI, BAUSANO and AMUT model spares Conical Twin Screw ...