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Production. Copper (refining). Electrolytic tanks in a large copper refining operation. Sheets of pure copper are formed by…
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Production. Copper (refining). Electrolytic tanks in a large copper refining operation. Sheets of pure copper are formed by electrolysis, later melted and poured into ingots. Large amounts of copper are produced for the war effort at the El Paso, Texas plant of Phelps-Dodge Refining Company. Sourced from the Library of Congress.

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Production. Copper (refining). Electrolytic tanks in a large copper refining operation. Sheets of pure copper are formed by electrolysis, later melted and poured into ingots. Large amounts of copper are produced for the war effort at the El Paso, Texas plant of Phelps-Dodge Refining Company. Sourced from the Library of Congress.

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