Activated Alumina, usually be used for defluorination, adsorption, desiccant in water&air treatment. Activated AluminaFunction1,wiping off fluorine ion in water2,adsorbing lubricating oil ... .We can also offer activated carbon for customers,nutshell/coconut shell/wood powder/coal columnActive carbon(HD-AC01,02,04,05) Activated Alumina defluorination