Makampani opanga zombo zotumizira amatanthauzira makampani amakono omwe amapereka ukadaulo ndi zida zamadzi monga makonda, kukhazikika kwa mabulosi, ndi chitetezo chamthupi.
Asanu ndi awiri ali ndi chopereka chathunthu chogwirizira zosungira. Crain ya Gantry imagwiritsidwa ntchito kuthandiza ntchito yomanga. Zimaphatikizapo magetsi pamwamba pamaulendo oyenda pamagalimoto a chitsulo chopanga mu maholo opanga, komanso kukweza kwamphamvu kwa onse ogwirira ntchito.
Timakonda kugwira ntchito zathu zothandizira anthu kuti tipeze bwino kwambiri ndi chitetezo. Titha kuperekanso yankho lokhalo loti tizikhala olinganiza.
