Chongqing Zhonghuan Filtration Equipment Manufacturing Co., Ltd., located in Chongqing Hi tech Industrial Development Zone, a charming mountain city, has been focusing on industrial oil filtration and purification for more than ten years since its establishment in 2010. It is a specialized manufacturer integrating research and development, production, sales and service of filtration and purification devices, and also customizes OEM ODM for some large enterprises. The company has a group of technicians and R&D application engineers. Inspired by the modern management mechanism of the enterprise, in cooperation with a professor of Lanzhou University of Technology, we have successively developed three series and dozens of models of purification, filtration and oil-water separation equipment with intellectual property rights, which have been successfully used in power, petroleum, chemical industry, metallurgy, mining, aviation, shipbuilding, machinery manufacturing and other fields. Along with the Belt and Road project, it is exported to Southeast Asia and Africa, such as India and Vietnam. It has played an important role in saving costs, reducing energy consumption and reducing environmental pollution for users, and has been unanimously recognized by users. The company's products have passed the ISO9001 quality system certification, and have a variety of special configurations and styles: closed type, explosion-proof type, trailer type, PLC full-automatic, fully imported filter purifier, etc., which can provide targeted solutions according to the different needs of users, providing a strong guarantee for customers to produce safely, save energy and reduce consumption, and reduce production costs.