gearbox casingtransmission case castingreducer case castingDescription: Using resin sand casting, lost foam casting and green casting process, SIMIS Casting Inc produces many kinds of case casting parts of transmission case used in truck, farm machine and construction machinery vehicle. Equipped with 4-Axis CNC machining centers, it can do the finished case parts besides case casting. The material of the case casting is mainly is grey cast iron and ductile cast iron. OEM case casting is welcomed.