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Phelps Dodge refining company, El Paso, Texas. Molten copper being poured from the refinng furnace. It is run through a bed of coke to prevent oxidation before the copper is cast into molds
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Phelps Dodge refining company, El Paso, Texas. Interior of plant showing copper ingots on conveyors
Casting ingots from copper at a Phelps Dodge refining company plant
Casting ingots from copper at a Phelps Dodge refining company plant