Ключевые слова: construction, discussion, engineer, engineering, expert, facility, gas, gas industry, gas pipes, gas refinery, gasoline, hard work, hardhat, helmets, industrial, industrial worker, industry, inspection, inspector, maintenance, oil, oil industry, oil refinery, on site, operation, operational, petrochemical, petroleum, pipe, pipeline, pipes, plant, refinery, refinery worker, safety, service, site, staff, station, storage, supervisor, support, survey, team, teamwork, technician, together, worker, workers, working,