Ma hope o nā makahiki he ulu wikiwiki, ʻo Kina y ka mea kūʻai alumini nui loa a me ka mea hana o ka honua, a ua hoʻonui wikiwiki ʻia kona ikaika piha. Ma ke ʻano o nā mea hana, ʻo ka extrusion nui o Kina, ka ʻōwili wela, ka hoʻopau ʻana i nā lako ʻōwili ua hiki i nā huaʻōlelo alakaʻi kiʻekiʻe. ʻO ka alumini no ka lawe ʻana i nā mea nui i hāʻawi i kahi kōkua nui i ka hoʻomohala ʻana i ka ra kiʻekiʻe kiʻekiʻe o Kina.

Steel ua mau i ka mea nui i loko o kaʻa manufacturing.But me ka ahahui i ka nohona kaiapuni a me ka ikehu-ola leo increasingly kiʻekiʻe, ka lahui wahie hoʻohana kumukānāwai makemake e tighten, nā mea kūʻai mai no hoi i mua koi kiʻekiʻe no ka kaʻa palekana, ka mea i koi automakers e ʻimi i nā mea hana hale kaʻa ikaika a māmā. ʻO ka hoʻohana ʻana i ke kila ikaika kiʻekiʻe.

Ke piʻi nei ka noi no nā ʻāpana kaʻa i kēlā me kēia lā , ʻO nā ʻāpana i hana ʻia i nā ʻāpana kaʻa alumini, , e like me ka mīkini, kahi hub kaʻa, hiki ke hoʻemi maikaʻi ʻia i ke kaumaha. Eia kekahi, ʻo ka radiator alumini he 20-40% ʻoi aku ka māmā ma mua o nā mea ʻē aʻe, a ʻoi aku ka māmā o ke kino alumini ma mua o 40% ma mua o ke kino kila, hiki ke hoʻemi ʻia ka ʻai wahie i ka wā o ke kaʻina hana maoli..