Kayayyakin
Clay Brick
Bayanin tubalin yumbu
Bulo mai yumbu yana da halayen haɓaka mai ƙarfi, ƙarfi mai kyau, kwanciyar hankali mai ƙarfi na thermal, da juriya ga saurin sanyaya da dumama. Bugu da ƙari, tubalin yumbu na yumbu na iya tsayayya da yashwar acidic slag zuwa wani matsayi. Dangane da amfani, tubalin yumbu na yumbu yana da arha, suna da babban fitarwa, kuma ana amfani da su sosai.