Zhongyuan Special Steel Co., Ltd. is located in Chengliu Town, Jiyuan City, Henan Province, founded in 1970. It is the only special steel manufacturer affiliated to CHINA SOUTH INDUSTRIES GROUP CORPORATION. The capital of ZYSCO amounted to 1.853 billion RMB in the end of 2011, and it covers 3.75 million square meters, of which construction 0.86 million square meters with 3700 sets of technical equipment. The main products of the company are big-sized precision forgings, mandrel bar, petroleum drilliZng tools, ductile iron pipe machining moulds, high pressure tube, corrugated roller, steel plate roller and length shaft forgings.