Size:1~2mm,2~3mm,4~6mm,6~8mm... high capacity of absorption,large surface... Application:Desicant,Adsorbent,Catalyst carrier IntroductionActivated alumina ball ... has much micro-paths, so the specific surface is large. It can be used asabsorbent desiccant and catalyst carrier. It ... is stable, the absorbed fluorine is 6400g/cm3. It has high strength, low abrasion, no soften in water, no expansion, ...