Ключевые слова: adult, blue collar, confident, construction, development, employee, energy, engineer, engineering, experience, expertise, foreman, gas, hardhat, helmet, industrial, industry, infrastructure, job, lead, leadership, male, man, manager, manufacturing, native american, occupation, oil, people, person, petrochemical, plant, portrait, power, professional, refinery, safety, skilled labor, smiling, supervisor, technology, worker, workplace,