Nā mea ʻokiʻokiHe kūpono ka ʻoki anu metala maloʻo no ka hana ʻana i ke kila hao haʻahaʻa, ke kila kalapona waena a me ka haʻahaʻa, ka hao hoʻolei, ke kila kūkulu a me nā ʻāpana kila ʻē aʻe me ka paʻakikī ma lalo o HRC40, ʻoiai nā ʻāpana kila i hoʻololi ʻia.
No ka laʻana, kila poepoe, kila kihi, kila kihi, kila kahawai, paipu huinaha, I-beam, aluminika, paipu kila kila (i ka wā e ʻoki ai i ka paipu kila kila, pono e hoʻololi ʻia ka pepa kila kila kūikawā)