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Petroleum oil gas fuel refinery, Petrochemical industrial building industry energy isolated on white background
Oil refinery. Outline drawing. Vector illustration. Sketch for creativity.
Oil refinery, factory, industrial plant, industrial landscape with clouds and trees. Contour drawing, line sketch on a white background.
Oil platform silhouette. Offshore petroleum jack derrick tower, energy industry gas extraction plant, fuel production and transportation. Vector illustration of petroleum gas industry silhouette
Refinery plant equipment for pump pipeline oil and gas valves pressure safety valve selective.

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