... noise, long operation time. 2. transmission gearbox for single screw extruder machine Main features:1.The material of gearbox is ... water coil we can make any specification of extruder screw barrel and injection screw barrel for Haitian, Demag, Engle, Nigro bossi, arburg, ... , Toshiba, Nissei, Mitsubishi and etc. We also can supply all types of screw and barrel according to your different requirements ...