ʻO ka ʻenehana extrusion mau he mea hoʻololi i ka laina o ka hoʻoili metala non-ferrous, hoʻohana ʻia ia no ka nui o ke keleawe, alumini a i ʻole ke keleawe alloy rod extrusion e hana nui i nā ʻano pālahalaha, puni, pahu kaʻa, a me nā alakaʻi alakaʻi. etc.