Keʻokeʻo corundum abrasive, i kapa ʻia hoʻi keʻokeʻo alumini oxide, maikaʻi ke kūpaʻa wela, ke kūpaʻa kiʻekiʻe o ka wela ma luna o 1750 degere, ka maʻemaʻe kiʻekiʻe, ka hoʻomaʻemaʻe ponoʻī maikaʻi, ka ikaika wili ʻana, haʻahaʻa calorific waiwai, kiʻekiʻe ka pono a me ka acid-base corrosion resistance. Ua hōʻike ʻo ia iā ia iho i nā ...
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