... transmission, low noise, long operation time. 2. transmission gearbox for single screw extruder machine Main features:1.The material of ... any specification of extruder screw barrel and injection screw barrel for Haitian, Demag, Engle, Nigro bossi, arburg,NPM, BOY, Husky ... We insist on the principle of quality first, honest to customers, the quickest service for customers” to improving us, our goal is ...