Ma jib cranes am'madzi amagwiritsidwa ntchito nthawi zambiri m'malo osungiramo zombo ndi madoko osodza kuti asamutse zombo kuchokera kumadzi kupita kumtunda, komanso amagwiritsidwa ntchito m'malo opangira zombo kupanga zombo. Crane ya jib ya m'madzi ili ndi magawo otsatirawa: khola, cantilever, makina okweza, makina ophera, makina owongolera magetsi, ndi ...
Werengani zambiri