Ключевые слова: arm crossed, boiler, caucasian, chemical, confidence, confident, duty, engineer, engineering, equipment, european, eyes protection, facility, factory, foreman, gas, happy, helmet, industrial, industry, job, labor, looking, machine, maintenance, male, man, manufacturing, occupation, oil, person, petrochemical, piping, plant, portrait, power, pressure, professional, refinery, safety, service, smart, steam, strong, technical, technician, work, worker, worker man,