ʻO nā mea forging ka nui o ke kila kalapona a me ke kila kila, a ukali ʻia e ka aluminika, ka magnesium, ke keleawe, ka titanium a me kā lākou mau ala. ʻO ke kūlana kumu o ka mea ʻo ka bar, ingot, ka pauka metala a me ka metala wai. ʻO ka ratio o ka ʻāpana keʻa o kahi metala ma mua a ma hope o ka hoʻololi ʻana ua kapa ʻia ...
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