Intshayelelo yeMveliso: 1, iJunda chrome corundum yi-alumina powder njengezinto eziphambili ezisetyenziswayo, ezilungelelaniswa ne-chromium oxide, ezinyibilikiswa sisithando somlilo esishushu kakhulu. 2, umbala upinki, ubulukhuni kunye ne-corundum emhlophe iyafana, ubulukhuni buphezulu kune-corundum emhlophe. Ii-abrasives eziveliswayo zinophawu...
Funda ngokugqithisileyo