Ukuqondisa kuvame ukusho insimbi eyindilinga ebopha ama-purlin ensimbi, okungukuthi ama-coarse steel bar, ukuze kuthuthukiswe ukuzinza kwama-purlins nokwenza ama-purlin angabi sengozini yokungazinzi kanye nokulimala ngaphansi kwamandla athile angaphandle. Kukhona izisekelo ezidayagonali (okungukuthi amadigri angama-45 agoba kuntambo yesikulufu) kanye nezinsimbi eziqondile (okungukuthi yonke iqondile). Ngemuva kokwelashwa okushisayo kwe-galvanizing, umphumela we-antirust ufinyelelwa.
1. Thola amabhawodi anamandla aphezulu ezakhiwo zensimbi. Izixazululo zokubopha eziqinile nezithembekile ziyatholakala manje.
2. Zitholele amabhawodi aqinile ekhwalithi ephezulu ezakhiwo zensimbi. Ibalulekile ekwakheni okuphephile.
3. Thenga amabhawodi aqinile ukuze usekele izakhiwo zensimbi. Qinisekisa ukuzinza nokuphepha kumaphrojekthi akho.
4. Thola ama-bolts angcono kakhulu aphezulu wezakhiwo zensimbi. Izixazululo ezinokwethenjelwa zokubopha zanoma yikuphi ukwakhiwa.
5. Faka imali kumabhawodi anamandla aphezulu ezakhiwo zensimbi. Qinisekisa ubuqotho nokuphepha kwamaphrojekthi akho okwakha.