Chongqing Yuneng Oil-Purifier Manufacture Co., Ltd., a hi-tech joint-stock enterprise, has developed on the basis of Former Chongqing Yuneng Oil-Purifier Factory. Now, the company, located in Chongqing hi-tech industrial development zone, has an area of 21 mu and an annual output value of 6o million yuan of oil-Purifier and apparatus. It is a competitive hi-tech company in the world, specialized in oil-Purifier researching and manufacturing. ISO9001 certified in 1999, it is engaging in supplying various fields with advanced, reliable and suitable vacuum oil-Purifier, special oil-Purifier and special petroleum product purification system. It strives to be a manufacturing enterprise with oil processing equipment up to international advanced level. It is also a distinguished assorted enterprise with heavy machinery whose products further sold to large and medium-sized companies in electric power, petrol-chemistry, metallurgy, machinery, military industry and other fields.