Cov cuab yeej thiab hom firebricks tau qhia
Cib yog ib qho ntawm cov khoom siv hauv tsev nrov tshaj plaws txij li thaum ub. Cov cib zoo ib yam yooj yim tawg ntawm qhov kub thiab txias thiab tsis haum rau qhov kub thiab txias. Nyob rau hauv cov ntaub ntawv no, tsoos cib feem ntau yog hloov los ntawm firebricks.
Firebrick yog ib hom cib uas tuaj yeem tiv taus qhov kub thiab txias. Nws tseem hu ua ceramic cib lossis firebrick. Feem ntau hais lus, lawv yog cov dawb. Cov cib no muaj cov cua kub zoo thiab zoo compressive zog.
