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Bessemer converter (iron into steel), Allegheny Ludlum Steel[e] Corp. Brackenridge, Pa. (1941?)Bessemer converter (iron into steel), Allegheny Ludlum Steel[e] Corp. Brackenridge, Pa
Bessemer process for manufacturing steel, 1936. Artist: FoxBessemer process for manufacturing steel, 1936. From Peoples of the World in Pictures, edited by Harold Wheeler, published by Odhams Press Ltd (London, 1936)
Decarburisation of pig iron in a Bessemer converter, 1900. Artist: GehrkeDecarburisation of pig iron in a Bessemer converter, 1900