Tianjin Rongheng Group Co., Ltd. is a national grade enterprise group permitted by the Agricultural Ministry of the People's Republic of China. Under the Group there are 15 sub companies, such as Tianjin Lutai Precision Casting Co., Ltd., Tianjin Lutai Oil Equipment Co., Ltd., Tianjin Xinchao Mechanical & Electrical Equipment Co., Ltd., Tianjin Daqian Steel Tube Manufacturing Co., Ltd., Tianjin Dapeng Screw Pump Manufacturing Co., Ltd., Tianjin Xingda Pump Manufacturing Co., Ltd., and Tianjin Hongjin Boring Equipment Co., Ltd., with total asses of RMB650 million. There're 2600 employees in the Group, including 260 technicians. The Group has always devoted to the development of new products and improvement of old products, persisting to adopt advanced science and technology. The Group has imported advanced test and production equipment and technology, which guarantee high technical contents in the enterprise. The series of products of centrifugal ...[More]ng water flooding pumps, researched and developed by our Group was awarded many national patents, and are listed into the "spark plan" of the state. The water flooding pumps, together with dining electric pumps and high quality precision castings made by our group are on good sale throughout the country and also in the USA, Germany, Japan and Australia, and are well received by users. At present, our company has formed production capacity with annual output of 10000 sets of pumps, 8000 tons of pump parts, and10,000 tons of high quality precision castings. This company passed through ISO9001 international quality system approval of DNV Company in 1997. Facing to the 21st century, we believe that we will obtain greater development. We sincerely hope that the majority of customers can give us more attention and support!