ʻO ka corundum kristal hoʻokahi ka maikaʻi o ka ʻoki ʻoki ʻana i nā ʻaoʻao he nui, kiʻekiʻe paʻakikī, kiʻekiʻe o ka paʻakikī waiwai, ikaika wili ikaika, haʻahaʻa wili wela, lōʻihi abrasive ʻoki ola, a hiki ke hana i ke kila paʻakikī a paʻakikī, e like me ke kila kila, ke kila kiʻekiʻe vanadium kiʻekiʻe, a me nā mea ʻē aʻe.
Ka manawa hoʻouna: Feb-22-2023