ʻO ke kila ka mea koʻikoʻi o ka ʻenekinia a me ke kūkulu hale. Hoʻohana ʻia ia i kēlā me kēia ʻano o ko mākou ola; i nā kaʻa a me nā huahana hana, nā pahu hau a me nā mīkini holoi, nā moku ukana a me nā scalpels ʻoki.

Hoʻohana ʻia ke kila kila i loko o ka lumi kuke, nā mea ʻoki a me nā mea kuke. Hoʻohana ʻia nā māka liʻiliʻi liʻiliʻi o ke kila no ka hana ʻana i nā pahi me nā ʻaoʻao ʻoi. Hoʻohana ʻia nā māka ductile o ke kila no nā mea pono e hoʻoheheʻe ʻia i ke ʻano e like me nā mea kuke, grills, sinks and saucepans.

ʻO ke kila kalapona i kapa ʻia he kila māmā, hoʻohana maʻamau ia i nā hale a me nā alahaka, axles, gears, shafts, rail, pipelines a me nā hui, nā kaʻa, nā pahu hau a me nā mīkini holoi. ʻOi aku ka maikaʻi o ke kila kalapona kiʻekiʻe, i hoʻohana ʻia no ka hana ʻana i nā mea hana ʻoki, nā lau, nā kuʻi, ka make, nā pūnāwai a me ka uea ikaika kiʻekiʻe.

hoʻohana ʻia ke kila galvanized no nā noho kaʻa kaʻa, balconies, verandas, staircases, walkways, a me nā alapiʻi. ʻO nā kolamu kukui e hāʻawi ana i nā kukui pō no nā alanui i hana ʻia me ke kila galvanized, e like me nā pylons e kākoʻo ana i ka hāʻawi ʻana i ka mana kiʻekiʻe i nā hale hana, nā kula, a me nā halemai.

ʻO nā alumini alumini i nā ʻoihana he nui, e like me nā moku kemika, nā mokulele a me nā ʻoihana aerospace a me nā moku a me nā kaʻa, ka mana uila a me nā mea ʻē aʻe, ke ulu nui nei ma muli o ko lākou kaumaha māmā, ko lākou ikaika kiʻekiʻe a me ke kūpaʻa ʻana i ka corrosion.

I loko o ka ʻoihana hana, hoʻohana ʻia nā kila kila e hana i nā ʻano huahana like ʻole, e like me nā kāʻei, nā kaola, nā paipu, nā papa, nā lau, nā koʻokoʻo, nā kaola a me nā mea hou aku. ʻO nā papahana hoʻolālā nui e like me nā alahaka, nā ala kaʻa, nā pylons uila a me nā ala kaʻa i kūkulu mua ʻia mai nā ʻano kila.