HENAN ZHONGYUAN SPECIAL STEEL EQUIPMENT MANUFACTURING CO.,LTD. Before named ZSSW and ZYSCO, is located in Jiyuan City,Henan Province, founded
in 1970. It is the only special steel manufacturer affiliated to CHINA SOUTH
INDUSTRIES GROUP CORPORATION.
The main products of the company are big-sized precision forgings, MPM mandrel
bar, petroleum drilling tools, ductile iron pipe machining moulds, high pressure tube,
corrugated roller, steel plate roller and extreme-length shaft forgings.
There are more than 3,500 employees and 1,000 of them are technical and
management personnel. We own advanced equipments in China covering steel
making, forging, heat treatment, machining, and a variety of inspecting and testing
equipments. Some core technology is exclusively owned by us and the Technical
Center is granted as provincial-level technical center. The central laboratory is
certifieded upon the first class of physical and chemical inspection institution of
China and the measurement department is certified upon the secondary class
measurement organization in China. We are awarded ISO9001-2000 certificate and
API monogram license for petroleum drilling tool’s.