1 excellent performances and stability in acid and other chemical corrosion conditions (acid-99.8%; alkali-92%); 2 stable chemical features and low rate of water absorption; 3 can resist high pressure and high temperatures in production procedure; 4 can resist the corrosion of almost all kinds of acids (including organic and inorganic acid, but except hf acid), organic dissolvent, and some alkali; 5 special ceramic packing and has the characteristics of high temperature resistance, corrosion resistance, good mechanical strength; 6 types include ceramic super intalox ring, ceramic rasching ring, ceramic cross partition ring, ceramic pall ring,ceramic intalox saddle ring,ceramic cascade ring, ceramic conjugate ring,ceramic tri-y ring,ceramic combined ring; 7 widely used in petrochemical, acid, natural gas, aqueous cleaning, fine chemical, environmental protection, pharmaceutical, fertilizer, and metallurgical plants where they are widely used in the towers of drying, filter, absorbing, cooling, washing, and recovering; 8 for mass transfer and severe acid corrosive applications.