ʻO nā kui kalapona kiʻekiʻe he anti-aging, kū'ē i ka hoʻololi kokeʻana o ka mahana, anti-corrosion, anu a me ka wela kū'ēʻana, ke kiʻekiʻe o ka halihaliʻana, ke kiʻekiʻe kiʻekiʻe, nā waiwai tensile maikaʻi; ʻAʻole maʻalahi ka deformed ma hope o ka hoʻouka ʻana, hōʻoia i ka moisture-proof, vibration mitigation, noise absorption a me ka insulation maikaʻi. Maʻalahi e hoʻouka, hiki ke hana i ka hammering, ʻaʻohe pono o nā mea hoʻokomo kūikawā.
ʻO ke kila kalapona i makemake ʻia ua kinai ʻia a paʻakikī, nani a pale i ka ʻōpala, me ka paʻakikī kiʻekiʻe a me ka paʻakikī maikaʻi.
ʻO ka paʻakikī kiʻekiʻe a me ka ikaika tensile no ka pale lole a me ka waimaka.
ʻO ke ʻano convex o ke kino kui no ka ʻoi aʻe o ka hakakā ʻana, ka liʻiliʻi o ka hoʻoikaika a me ka wikiwiki.
Paʻakikī no ke komo maikaʻi ʻana a me ka liʻiliʻi o ka deformation.