Jiangsu Shuangxin Petroleum Machinery is a leading company in Jianhu petroleum equipment manufacturing base. In an area of 400 mu, the company constructed 65,000 square meters of plant building and 5,000 square meters of research and development building. The company employs 418 people, has modern metal processing, large steel casting, heat treatment and product assembling production line and full ranges of testing equipments. Its product range covers: drilling fluid manifold、choke and kill manifold、new high energy-efficient pumping unit、BOP、Christmas tree、series of valves、tubing head、casing head、drilling mud pump accessories and so on, part of the products are suitable for offshore oil exploitation. Drilling fluid manifold is famous brand products in Jiangsu province and China’s petroleum and petrochemical equipment manufacturing industry, ZJ90DB drilling fluid manifold is high-tech product in Jiangsu province which has been included in national innovation fund project. Production of new high energy-efficient pumping unit marks Jianhu petroleum equipment industry  achieves terminal and high-end oriented of the products in the first time. It is awarded first set of major equipment product、excellent new product in Jiangsu province, has been listed in nation torch program. The company has AAA contract credit grade, obtains quality、environment、security system certifications, establish enterprise academician workstation、postdoctoral innovation base of Jiangsu province、petroleum energy-efficient pumping unit engineering research center in Jiangsu province, has obtained more than 60 pieces of patent for invention and patent for utility models. The company is national high-tech enterprise、national implementing standard pilot enterprise for the integration of the IT application with industrialization 、technical center in Jiangsu province、demonstration enterprise in Jiangsu province for the integration of the IT application with industrialization、one of the top 50 enterprise