Ключевые слова: bluecollar worker, building activity, building story, built space, cement, concrete, construction industry, construction machinery, construction site, construction worker, craftsperson, electrical equipment, equipment, hand, human hand, industrial building, industry, labor union, machinery, men, metal, occupation, one person, people, place of work, power equipment, punching, repairing, safety, steel, technology, welder, work tool, working,