Strong selling opinions : A: The hydraulic driving is adopted. B: No corner screws needed . C: Turn over bag or push bag type. D: 8 grades, from 63 tons to 400 tons This kind of machine can extrude every kinds of metal leftover materials, steel paring, waste copper and waste aluminum into qualified charging such as square column, cylinder, octagon body and other shapes. The purpose is to reduce the costs of transportation and smelting.