Ceramic pall ring is some kind of random packing , has superior acid and heat resistance, and can resist the corrosion of various strong acid and alkali except hydrofluoric acid.Ceramic pall ring is able to applied to the drying tower, absorbing tower, cooling tower, desulphurization towers , rectifying tower, washing tower and regenerative tower in petro-chemistry, chemical engineering, coal chemical engineering, elaborate chemical engineering, fertilizer, sulphuric acid, smelting, electrical power and environmental protection industries. Chemical compostion: Al2O3 17-23% SiO2 >70% Fe2O3