Delemil (Beijing) Fluid Filtration and Separation Technology Co., Ltd (Hereinafter referred to as "Delemil") is the national high-tech enterprise integrated research & development with manufacture, which has introduced USA technology to manufacture and develop all kinds of membranes, whose designs are unique and excellent, including household and industrial reverse osmosis membranes, seawater desalination membrane, anti-pollution membrane, brackish water membrane, ultrapure water membrane, municipal membrane and so on.