Ballproof ceramics: Boron Carbide , Silicon Carbide, Alumina Series, Tungsten-Copper, Tungsten Carbide Copper can be supplied.. Our company is professional in making ... .We have 3 types of ceramic tiles: Silicon Carbide (SiC), Alumina (Al2O3) and Boron Carbide (B4C). The density of Al2O3 is 3 ...