refractory material high-alumina cement and calcium alumina cement, CA-70.CA-75.CA-80.CA-85 High-alumina CA50 cement:Quick hardening and short setting time, applications to the rapid repairing in winterhigh strength, good grain shape, anti-sulphate erosion, anti-freezingThe technical index of refractory material high-alumina CA50 cement : Specifications: ItemsUnitIndexCA-50ChemicalAl2O3%≥53.00CaO ...