Ключевые слова: architecture, blue, builder, building, busy, caucasian, concrete, construction, equipment, factory, formwork, hand, hard, hat, helmet, high, holding, hot, industrial, industry, iron, job, labor, laborer, light, male, man, material, men, metal, people, power, protection, reinforcement, safety, security, site, skilled, steel, structure, technical, tool, welder, welding, white, work, worker, workers, working, young,