Dongan Precision Manufacturing Co., Ltd was built in 1984 who's predecessor was Hebei Metallurgy Technology Development Company and was changed to be Hebei Dongan Precision Shaft Factory in 2000. It finished the share-holding system reform for the listed request in 2011. Now it is the earliest construction, the best quality and the largest scale specialized CWR manufacturer in China at present. The factory is located in National Hi-Tech Industrial Development Zone, Shijiazhuang with the regis...View More