XIAN RELIANCE PETROLEUM MACHINERY CO. LTD.

We are the agency of the largest state-owned enterprises**-GuiZhou Gaofeng Petroleum Machinery in this field of China, which products share *0% market in China. We are specialize in petroleum machinery, such as drill pipe, mud pump, drill collar, and other related parts. With professional project, design and inspection department, all of our products manufactured strictly conform to API standard, and with material certificate, detection of defects report, heat treatment report, and quality certificate, and API association mark. Thus the quality is absolutely guaranteed as well as competitive price and good service.