ʻO ka uea kila kila, ʻike ʻia hoʻi ʻo ka uea kuhili ʻole, he huahana uea o nā kikoʻī like ʻole a me nā hiʻohiʻona i hana ʻia me ke kila kila.ʻO ʻAmelika Hui Pū ʻIa, Netherlands, a me Iapana ke kumu, a ʻo ka ʻāpana keʻa he poepoe a pālahalaha paha.ʻO nā uea kila kuhili ʻole maʻamau me ke kūpaʻa corrosion maikaʻi a me ka hana kiʻekiʻe o ke kumu kūʻai he 304 a me 316 mau uea kuhili.