Industrial zone,The equipment of oil refining,Close-up of industrial pipelines of an oil-refinery plant,Detail of oil pipeline with valves in large oil refinery,isolated on white background. Shutterstock Image - Industrial zone,The equipment of oil refining,Close-up of industrial pipelines of an oil-refinery plant,Detail of oil pipeline with valves in large oil refinery,isolated on white background. - ID: 631906967