Ndi chitukuko chofulumira cha ntchito yomanga m'zaka zaposachedwapa, zitsulo zazitsulo zakhala zikugwiritsidwa ntchito kwambiri.
Steel springboard ndi mtundu wa zida zomangira pantchito yomanga.
Nthawi zambiri, angatchedwe zitsulo scaffolding bolodi, zomangamanga zitsulo masika, chitsulo chopondaponda, kanasonkhezereka zitsulo masika, kanasonkhezereka zitsulo pedal,
ndipo imalandiridwa bwino ndi makampani opanga zombo, nsanja yamafuta, mphamvu yamagetsi ndi zomangamanga.
4. Kutalikirana kwa dzenje kumapangidwa mwaukhondo, kokhazikika, kokongola, komanso kolimba (zomanga zopunduka zitha kugwiritsidwa ntchito mosalekeza kwa zaka 6-8). Ukadaulo wapadera wa dzenje la mchenga womwe uli m'munsimu umathandizira kupewa kuchulukira kwa mchenga, komwe kuli koyenera kwambiri kugwiritsa ntchito ma workshop a sandblasting m'mabwalo a zombo.
5. Mtengowo ndi wotsika kuposa wa matabwa a matabwa, ndipo 35% -40% ya ndalama ndi ubwino wina ukhoza kulandiridwa pambuyo pochotsa. Ndi ubwino wake, zitsulo zopangira zitsulo zasintha matabwa oyambirira a matabwa ndi nsungwi, ndipo zakhala zokondedwa zatsopano zamakampani. Ndi mafotokozedwe osiyanasiyana, amatha kukwaniritsa zosowa za malo osiyanasiyana omanga ndikuwongolera ntchito yomanga.
Nthawi yotumiza: Jan-30-2021