... , including water desalting( make drink water from bitter &salt water and seawater), purified water (purification of cooling water and boiler water), ultra-pure water (water for paint ... reverse osmosis and other purification devices. 1 stage RO+EDI Double stages RO +EDI Double stages RO +EDI+Ultra-filterIt (It can satisfied the ... whole set documentations: FAT, SAT, DQ, IQ, OQ, PQ ect. RO water purifier