Abrasive corundum Brown, oo inta badan ka kooban Al2O3, wuxuu leeyahay engegnaan dhexdhexaad ah, qallafsanaan weyn, qaybo fiiqan, qiimo jaban, wuxuuna ku habboon yahay farsamaynta biraha leh xoogga xajinta sare.Abrasive-ka microcrystalline corundum iyo abrasive corundum madow ayaa ah asalkooda.
Waqtiga boostada: Mar-01-2023