Stone Puyang Zhongyuan Oilfield Group Limited is a specification based restructuring of enterprises, high-tech enterprises in Henan Province and technology enterprises. The Group produces petroleum machinery equipment mainly run conglomerates trade at home and abroad. The main products are: oil equipment, drilling equipment, electrical equipment, pressure vessel manufacturing, environmental protection equipment, oil and gas desulfurization equipment and the production and processing of steel and camping house more than 100 in 10 categories.