Ma ke ʻano he metala māmā, ʻo ka ʻike o ka alumini i loko o ka ʻōpala o ka honua ke kūlana ʻekolu ma hope o ka oxygen a me ke silika.No ka mea he mau hiʻohiʻona o ka alumini a me nā alumini alumini, ka ikaika kiʻekiʻe, ke kūpaʻa corrosion, ka uila maikaʻi a me ka thermal conductivity, ka hana maʻalahi, malleab ...
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