Ho tloha lekholong la bo21 la lilemo, li-ceramics tse thibelang likulo li tsoetse pele ka potlako ka mefuta e mengata, ho akarelletsa le Alumina, Silicon Carbide, Boron carbide, silicon Nitride, Titanium Boride, joalo-joalo Har'a tsona, Alumina Ceramics (Al2O3), Silicon Carbide ceramics (SiC) le Boron Carbide Ceramics. (B4C) ke tsona tse sebelisoang haholo.