White corundum abrasive, yomwe imatchedwanso white aluminium oxide, imakhala ndi kukhazikika kwamafuta, kutentha kwapamwamba kuposa madigiri a 1750, kuyera kwambiri, kudzinola bwino, kutha kugaya mwamphamvu, kutsika kwa calorific, kuchita bwino kwambiri komanso kukana kwa dzimbiri kwa asidi. Zadziwonetsera yokha mu ambiri ...
Werengani zambiri