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