ʻO ka ikaika kiʻekiʻe: Hāʻawi ka Core Steel Core i kahi ikaika kiʻekiʻe loa, e hiki ai i ke kaulahao i ke kaulahao me ka wāwahiʻoleʻia. He mea nui kēia no ka paleʻana i nā wili mai ka wāwahiʻana i nā kūlana o keʻano a iʻole ke kauʻana i nā hopena o waho.
ʻO ka hana uila maikaʻi:ʻo ka papa o waho o ka pūpū o Alumim State e hāʻawi i ka hana uila uila maikaʻi. ʻOiaiʻaʻole maikaʻi ka hanaʻoihana ma keʻano o ka Steel
Resistion resistion: galvanized kila kila corission i kū i ke kuʻekuʻe corrosion a hiki ke hoʻololi i nā kūlana kūlohelohe'ē aʻe,ʻoi aku hoʻi i nā kūlana o nā kaiāulu.
ʻO ka hoʻololiʻana o ka kaiāulu
