On the basisi of Gongyi Changmao Supplying and Draining of Water Materials Comapny,Sino-SouthKorea Joint Venture Henan Changmao Yuanyi Valve Co.,Ltd. was founded in March 2003 and specialize in the enquipment of supplyingand draing of water materials.The chairman of the board is is Mr YuanHaofeng whose nationality is SouthKorea and the general manager Mr ZhaoChangmao. Gongyi City one of "Top hundred county" located between Zhengzhou and Luoyang, great convience of transportation depend on the Longhai Railway, 310 National Highway, . Great Poet Dufu's hometown, good to sightseeing of Luoyang peony, to the South is world known Kongfu birthplace Shaolin Temple, to the north is the Yellow River. complete infrastructure, advanced telecommunications, transport facilities, in fact, outstanding..