... extruder, based on 38CrMoAlA. conical twin screw and barrel for plastic extruder, granulator or pelletizer Ruian Yumin ... co.,ltd is a factory specialized in making screw barrel, filter, mould, gearbox and recycling machine. Founded ... 35/75, 45/90, 45/100, 50/105, 55/110, 60/125, 80/143, 80/156, 92/188 ... /D ratio of screw: 16-35Conical dual-hole barrel screw specificaiton: Φ25Φ45-Φ92Φ188(according to ...