Sand casting Material: cast iron Process: sand casting and machining ISO9001:2000 OEM/ODM ... parts, water pump body, oil mechanical flow meters, valves, flanges, all kinds of gears of speed-changing boxes and speed changing ... lathes and machining centers like DMG, MAZAK, Garrison, large gantry machining centers, all-pervasive CNC machine tools and more than 80 precise ...