Calcium aluminate cement should be used in making bulk refractory material, refractory castable and refractory brick. Widely used for making various furnaces in metallurgical industry, chemical industry, petrolic industry, electrical industry, machinery made industry, building materials industry. It is also used in project of emergency repairing and emergency construction as well as chemical building materials for special use. we can supply all kinds of CA50 cement, for example, CA50-G6 (Al2O3>=50%) CA50-G7 (Al2O3>=50%) CA50-N (Al2O3: ~ 55) CA50-G9 (Al2O3: ~ 55) CA50-Fused (Al2O3: ~ 55) If you are interested in such kinds of cement, I will be pleased to tell you the more detailed technical index and will give you our best price and service.