Ключевые слова: background, basis, black, building, bulldozer, car, cement, concrete, construct, construction, crane, detail, development, element, engineering, equipment, excavator, finish, foundation, heavy, house, icon, illustration, industrial, line, linear, loader, machine, machinery, manufacture, mixer, modern, outline, part, project, rebuild, set, symbol, tech, thin, tool, tractor, transport, transportation, truck, vehicle,