Horudhac Alaabta: 1, Junda chrome corundum waa budada alumina oo ah alaabta ceeriin ee ugu weyn, oo la qabsato chromium oxide, oo ku dhalaalaysa foornada heerkul sare. 2, midabkiisu waa casaan, qallafsanaan iyo corundum cad oo la mid ah, adayggu wuu ka sarreeyaa korundum cad. Abrasives-ka la soo saaray waxay leeyihiin dabeecad ...
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