... investment casting/sand casting/ CNC machining DescriptionCNC machining process with sand castingMaterial Cast iron, grey iron, ductile iron, ... injection machine,CNC machine,milling machine,drilling machineElectric pulse,Projecting apparatus,tecApplied software: Pro/E, Auto CAD 2000 ... the foundry, and in the meanwhile work together with many good foundries producing steel castings, stainless steel ...