... bush,various barrel,electric control system,core shaft,screw,screw elements,mixer gearbox,alloy bush,various barrel,electric ... control system,core shaft,screw,screw elements,mixer,automatic weighing packaging machine,cyclone separator, ... -ring pelletizer,gear,heater,screen changer system Matierials Screw element is made by W6Mo5Cr4V2 or 38CrMoAlA SpecificationsScrew ...