Ключевые слова: adult, business, caucasian, construction, contractor, development, diverse, employee, engineer, engineering, equipment, expert, facility, factory, happy, hardhat, heavy, helmet, industrial, industry, job, machine, machinery, maintenance, male, man, manager, manufacture, manufacturing, metal, modern, occupation, people, person, plant, portrait, production, professional, protection, safety, smile, steel, supervisor, system, technology, uniform, warehouse, woman, work, worker,