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Phelps Dodge refining company, El Paso, Texas. Sheets of copper being prepared for the electrolysis tanks
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El Paso, Texas. Phelps Dodge refining company. Sheared sheets of copper
Phelps Dodge refining company, El Paso, Texas. Sheets of copper being prepared for the electrolysis tanks
Phelps Dodge refining company, El Paso, Texas. Sheets of copper being prepared for the electrolysis tanks