ʻO ka corundum kristal hoʻokahi ka maikaʻi o ka ʻoki ʻana i nā ʻaoʻao he nui, ʻoi aku ka paʻakikī, ka waiwai o ka paʻakikī, ka ikaika wili ikaika, ka wela haʻahaʻa haʻahaʻa, ke ola ʻoki abrasive lōʻihi, a hiki ke hana i ke kila paʻakikī, e like me ke kila kila, ke kila kiʻekiʻe vanadium kiʻekiʻe. etc. He mea kūpono hoʻi ia no ka wili ʻana i nā mea hana deformed a maʻalahi i puhi ʻia a me ka wili hānai nui.
Ka manawa hoʻouna: Feb-22-2023