Chongqing To Guangdong Science And Technology Development Co., Ltd (Chongqing Oil Treated Equipment Manufacturing Co., Ltd) is a Sino-foreign joint venture. It is a hi-tech enterprise which is integrating research and development, production and sales of top-middle grade oil treated purification and regeneration equipment, air-and-soot purification equipment and pump water heater. There are two brands—Yueshang and Guangshang under the company mainly running several technology and environmental pritection projects of oil treatment, industrial water treatment, and pump water heater. The company widely absorbs domestic and international advanced technology of oil treated putification and regeneration and are-and-soot purification. The company is dedicated to the forefront research and development so that is has become the main base for reseatch and development in China. With abundant R&D technology of domestic and international advanced technology of oil treated purification and regeneration and air-and-soot purification, the company boasts advanced maufacturing and checking equipment, high products’ performance, complete range of varieties, and fast and excellent after-sales sevice system so that is gains the reputation of key manufacturing enterprise in same industry. Products have been added to the list of project for state-level key new product in 1998 after passing the appraisal of National Ministry of Water Resources, National Electrical Corporation, Ministry of Railways, Ministry of Chemical Industry and Sinopec, ***** Besides, the company has become a famous enterprise with the ability of research and development, production and sales in the same industry whose products passed ISO9001:2000 quality certification in 2003. Meanwhile it leads the trend of technology of oil treated purification and regeneration and air-and-soot purification. At present, the company has researched and produced twelve series more than 100 varieties of oil treated purification and