HEINE SCHNEEBELI / SCIENCE PHOTO LIBRARY HEINE SCHNEEBELI / SCIENCE PHOTO LIBRARY
Steel production: huge bars of steel being extruded from a billet mill at a steel plant. The mill runs continuously, and is fed by one or more furnaces. The siting of the mill adjacent to the steel production plant means that there are no additional transportation or heating costs. The billet mill is used for producing bars of steel, other mills produce sheet steel.
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