Pipe Co., Ltd. formerly known as four-dimensional joints of industrial universal joint plant in Shenyang, the reform and opening up to revitalize the northeast old industrial area redevelopment after 2000 units; in a new economy and business issues. Division I professional production of universal joints and other industrial machinery transmission parts, various types of industrial couplings SWC, SWP, SWL, WD, DF-type universal joint, construction machinery, rail transportation, mining earth-moving machinery, equipment, downhole operation Inoue, universal joint with a large shipbuilding, chemical industry, rolling mills with a coupling, oilfield opened by coupling, machine tool, encoders, wire