1) investment casting gears 2)CNC,CMM 3)ISO9001:2000,ERPsystem 4)100% inspection ... on critical dimension 5)Ten-year experience investment casting gears + drawings Detail descriptionsmaterialCopper, brass, bronze, aluminum bronze, tin bronze, ... /C, T/T and West UnionShipping portsNingbo, Shanghaiwe are a manufacturing company with long experience of mental casting, forging and machining ...