... PW series Purified Water Treatment System for Pharmacy Reverse-Osmosis,EDI,no need of chemical recovery Usage: eliminate salt, colloid, ... two grade reverse osmosis step 3 (opition), EDI (electro desalt system)Range: state: colorless, apparent liquid, no odor, no taste ... of project, Europe standard machines, top clean room system, Top sanitary pipe system, whole project management, it with HM standard & ...