Conical Twin Screw and Barrel Conical Twin Screw and BarrelSize: 45/90, 51/105, 65/132,80/156 ... material 38CrMoAIA, welded inlay on the flight, prolong life of screw. Easy wearing parts of barrel feed inlet made from imported ... improvde abrasion performance. Twin screw and barrel made: CINCINNATI, BATTENFELD, KRUSSMAFFEI, BAUSANO and AMUT model spares Conical Twin Screw and barrel for extruder 1