I ko mākou ola i kēlā me kēia lā, e hoʻohana mākou i nā huahana metala he nui.Nui nā huahana metala he synthetic.ʻO ka pepa keleawe keʻokeʻo he keleawe keleawe me ka nickel ma ke ʻano nui a ʻaʻohe mea.Ma muli o ke keleawe-nickel alloys, ua hoʻohui ʻia nā koʻokoʻo cupronickel me nā mea ʻekolu e like me ka zinc, manganese, aluminika, a me nā mea ʻē aʻe, ...
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