Screw Conveyor 1, 168,219,273,323,407mm in diamater. 2, angle, ... of gear ratios A) High quality motor and gear box, with heavy duty design, large torqe and low noise.B) outside ... tube complete with one inlet, one outlet, end flange, ball joint , inspection window ... , JZC350/750, JZM350/750...... concrete mix plant spare parts ,Screw Conveyor