Ningbo Nava Machinery Co., Ltd. is a company which mainly offer aluminum alloy casting products, and aslo supply other maturials parts such as brass parts , cast iron parts ,stainless steel parts ,Carbon steel parts, alloy steel parts..etc, we supply casting parts, machining parts, valve fittings, hydraulic parts, train parts, precision parts, hardwares, fittings and so on, which are widely used in machine, mineral, vessel, equipment, raiway, automobile, oil, tubing system, hydraulic, engineering& agricultural machines...ect.