Ключевые слова: adult, beard, bluecollar, builder, building, business, caucasian, construction, day, driver, employee, engineer, equipment, factory, handbook, hard, hardhat, hat, helmet, if you, indoors, industrial, inspection, job, machine, machinery, male, manager, manufacturing, mechanic, men, occupation, outdoors, person, plant, portrait, professional, protection, reflective, safety, serious, smile, standing, technology, transportation, worker, working, young,