I-corundum emhlophe yenziwe kwikhwalithi ephezulu ye-alumina powder ngokunyibilikiswa kombane.Inombala omhlophe, ubulukhuni obuphezulu, ubulukhuni obusezantsi, ubunyulu obuphezulu, ukuzilola okugqwesileyo, amandla okusila, ixabiso eliphantsi lekhalori, ukusebenza kakuhle kakhulu...
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