ʻO ka alumini extrusion kahi ʻenehana i hoʻohana ʻia e hoʻololi i ka alumini alumini i nā mea me kahi ʻaoʻao cross-sectional definitive no kahi ākea o ka hoʻohana.ʻO ke kaʻina hana extrusion e hana i ka hapa nui o ka hui like ʻole o ka alumini o nā ʻano kino.ʻO kona malleability hiki iā ia ke maʻalahi i ka mīkini a hoʻolei ʻia, akā ʻo ka alumini ka hapakolu o ka nui a me ka paʻakikī o ke kila no laila e hāʻawi nā huahana i ka ikaika a me ke kūpaʻa, ʻoiai ke hoʻohui ʻia me nā metala ʻē aʻe.