Gulu la zomangira zobowola za kubowola zitha kugawidwa m'mitundu yosiyanasiyana malinga ndi kugwiritsa ntchito zomangira, zotupa za herove on top toptar, etc.
p>Kubowola mchira ndi mtundu wa screw, makamaka kugwiritsidwa ntchito pokonzanso matayala amitundu yachitsulo m'magulu achitsulo ndikuyika zida zowonda m'nyumba zosavuta. Imakhala ndi ntchito zingapo pankhani zomangamanga, nyumba, ndi zina zambiri chifukwa chogwira ntchito yofunika kwambiri pomanga nyumba zokwera kwambiri komanso mayendedwe othamanga kwambiri.
Ubwino waukulu wa waya wobowola umaphatikizapo:
1. Sungani nthawi ndikusintha bwino - kapangidwe kaya kaya kumalola kubowola mwachindunji, pogogoda, ndikutseka kwa nkhaniyo, nthawi yomanga, nthawi yomanga.
2. Kulimbikitsa Kukhazikika ndi Chitetezo: Kubowola mobisa ali ndi kukhazikika kwabwino komanso chitetezo poyerekeza ndi zomata wamba, ndipo sichingamasule mosavuta ngakhale mutakhala nthawi yayitali.
3. Ntchito yapadera: Mchira wobowola ndi woyenera mbale, monga mbale za aluminiyamu, ma board, mbale za mphira, ndi zina zambiri, ndi minda yapamwamba, ndi minda yayitali.