Kerui group researches and manufactures more than ten series of high-tech petroleum equipments including land and offshore drilling rig and work-over rig; oilfield fracturing units; special operation equipment such as cementing truck,nitrogen production truck; oil gas process system; natural gas liquefaction unit; large-scale pressure vessel series; wellhead and well control system; oil production machinery equipment. Members of: IADC China Chamber of international Commerce China Council For The Promotion of International Trade