ʻO nā mea forging ka nui o ke kila kalapona a me ke kila kila me nā ʻano hui like ʻole, a ukali ʻia e ka aluminika, ka magnesium, ke keleawe, ka titanium a me kā lākou mau ala. ʻO nā kūlana mua o nā mea i loaʻa i ka bar, ingot, ka pauka metala, a me ka metala wai. ʻO ka ratio o ka ʻāpana keʻa o kahi metala...
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