Ключевые слова: business, check, construction, control, energy, engineer, engineering, equipment, factory, fuel, gas, gasoline, helmet, industrial, industry, inspection, inspector, maintenance, man, manufacturing, mechanic, mechanical, men at work, metal, occupation, oil, person, pipe, pipeline, plant, platform, power, pressure, production, pump, record, refinery, repair, rig, safety, site, steel, supply, technician, technology, visual, welding, work, worker,