Ключевые слова: activity, build, building, business, construct, construction, construction site, counter, counter jib, counter jib is installed, crane, cranes, create, engineering, erect, frame, hanging, heavy, high, industrial, industry, installed, is installed, jib, lift, lifting, load, machinery, mast, metal, mobile, outdoor, rise counterjib, section, set, setting, setting up, setting up tower crane, site, sky, steel, tall, technology, topslewing, topslewing tower crane, tower, tower crane, unfinished, up, worker, working, yellow,