Ключевые слова: background, blurred, closeup, concept, control, distribution, energy, engineering, environment, equipment, facilities, factory, fittings, flow, fuel, gas, gate valve, handle, heavy, heavy industry, industrial, industrial landscape, infrastructure, machinery, manual, manufacturing, metal, oil, outdoors, petrochemical, pipe line, pipeline, pipes, piping, plant, power, production, red, refinery, resources, shutoff, steel, supply, system, technology, transportation, utilities, valve wheel, valves, wheel,