Model CD/MD waya chingwe chokwezera magetsi ndi kakulidwe kakang'ono zonyamulira zida, amene akhoza wokwera pa single mtengo mlatho, gantry ndi jib cranes.Itha kukhazikitsidwa pamtengo wowongoka kapena wopindika wa I, ndipo itha kugwiritsidwa ntchito ndi chiwongolero chopanda zingwe.Ndi kusinthidwa pang'ono, itha kugwiritsidwanso ntchito ngati winch....
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