ʻO nā mea koho a me nā hiʻohiʻona hana o nā kiwi kila kila
ʻO ka valve kila inless he ʻano valve i hana ʻia i nā mea kila kila, no ka maikaʻi o kona kūpaʻa ʻana i ka corrosion, ke kiʻekiʻe o ka mahana wela a me ka pale ʻana o ka oxidation, hoʻohana nui ʻia i ka petroleum, chemical, metallurgy, construction a me nā ʻoihana ʻē aʻe. Ka...
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