Ключевые слова: activity, assembly, blue, build, business, concrete pillars, construct, construction, counter, counterjib, crane, device, engineering, erect, erection, erection tower crane, frame, gear, hanging, heavy, high, industrial, industry, installation, installed, jib, lift, lifting, load, machine, machinery, mast, mechanism, metal, mobile, mounting, outdoor, section, set, setting, site, sky, structure, tall, technical, technology, tower, tower crane, tower crane liebherr, unfinished,