Paipa kati kōtuhi maitaiRauemi Commen
1.Square ngongo: te tikanga e whakamahia ana i runga i te poutū poutū o te kōtuhi atamai, tenei whakatakotoranga whānui ko 70 * 50,50 * 100, 100 * 100, 120 * 120, 150 * 150 ranei atu ngongo tapawha nui, ngongo tapawha iti pērā i 50 *50 mo te kati kōtuhi pae here whakapae.
2.Circular tube: ka whakamahia hei hanga i tePaipa maitai mo te Whare Kakariki.He hanganga kawenga tuarua, a, ka tukuna te kaha ki te hanganga ahotea matua i muri i te raruraru.Koia te anga o te kati kōtuhi.
3.Elliptic ngongo: elliptic ngongo he hua hou whakaurua i roto i nga tau tata nei.Ina whakaritea ki te ngongo porohita, he tino pai te pehanga a te ngongo elliptic.Heoi, na te mea he mea hanga te ngongo elliptic o naianei ki te riipene piauau, he iti ake tana mahi aukati i te ngongo porohita.
4.Profile Steel: ka whakamahia i runga i te tihi o te kati kōtuhi mohio hei hanga i te anga maitai.He te painga o te utu iti, me te rawakore pūmautanga whakaritea ki te putorino tapawha.Kei te nuinga whakamahia i roto i ngā wāhi ki te ahotea iti me ngā whakaritenga tiaki waikura.