Ключевые слова: architecture, brick, building, buildingmaintenance, buildingwork, city, concrete, construction, constructionequipment, constructionworker, contractor, daylight, development, engineering, equipment, exterior, facade, frame, hanging, height, high, industrial, infrastructure, installation, job, labor, ladder, machinery, maintenance, metal, photo, platform, protective, renovation, repair, restoration, safety, scaffold, site, sitework, steel, structure, support, tool, unfinished, urban, work, worker, yellow,