SPUTNIK / SCIENCE PHOTO LIBRARY SPUTNIK / SCIENCE PHOTO LIBRARY
Steel production. View of a section rolling shop at a steel mill. The section rolling shop is where thick rods of steel are progressively rolled and pressed to form section bars - for example, I-section girders for construction and rails for railways. The process is continuous, so the rolling shop has to be very long. Photographed at the Cherepovets steel mill, Russia.
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