Nantong ShuangFeng Mechanical & Electrical Co.ltd was founded in 1998,is one of largest chinese bearing manufacturers. Nantong shuangfeng is the dominant product of major technologies and equipment supporting bearings, bearings, auto bearing rail transportation vehicles, military equipment bearing, leading products in the domestic market share in more than 5%. In the design, manufacture and testing ,we have a certain competitive ability in international market.The enterprise has a ...