Ko te hanganga rino kua whakakikoruatia te mana he mea hanga mai i te pereti maitai a Hainamana (Q355B & Q235B) hei rauemi turanga.
I muri i te pehi, te hanga poka, te tapahi me te hanga, ka whakamahanahia te paura kapia epoxy ki te wera nui kia toua me te whakarereke, katahi ka tukatukahia ma te rongoa me etahi atu tikanga.
Ko nga hua tae atu ki: H zection hanganga maitai pou & kurupae, hau ātete tīwae, awhi, pae here, putorino casing, Purlin me etc.