Shijiazhuang Dong Li Petroleum Machinery Co., Ltd. (DLSY) was established in 2008 with a vision to provide global and professional oil drilling international supply chain service. Besides, our company has won the title of high-tech enterprise in Shijiazhuang Meanwhile, we have always been dedicated to fulfilling with the vision with producing the premium product, persistent professionalism, innovation and crucial accountability service. With a high-end energy manufacturing plant covering an area of 20000 square meters that will provide customers with high quality and most excellent products and services.