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Steel mill
A steel mill or steelworks is an industrial plant for the manufacture of steel. Steel mill can refer to the steel works making rolled products from iron ore, but it also designs, more precisely the plant where steel semi-finished casting products (blooms, ingots, slabs, billets) are made, from molten pig iron or from scraps. ==History== Since the invention of the Bessemer process, steel mills have replaced ironworks, based on puddling or fining methods. New ways to produce steel appeared later: from scraps melted in an electric arc furnace and, more recently, from direct reduced iron processes. In the late 19th and early 20th centuries the world's largest steel mill was the Barrow Hematite Steel Company steelworks located in Barrow-in-Furness, United Kingdom. Today, the world's largest steel mill is in Gwangyang, South Korea.〔(【引用サイトリンク】title=Barrow )〕〔("POSCO Steel’s Fourth Quarter Executive Board Meeting in India" ) New Delhi, October 18, 2007〕
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