Compared with Ceramic Berl Ring, it changes the both arched surface to rectangulor surface.This change increases packings contacting gap and promotes air-liquid’s flow and dispersion. Owing to Ceramics have excellent acid and high temperature resistance characteristic, it is very suitable in High temperature and corrosive environment. In addition,as ceramics are very brittle, it is very easy to broken in a long distance transportation. It is mainly used in petrochemical and RTO field, especially in the drying tower and absorption tower for sulfuric acid production.