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Production. Tin smelting. Long tubes carry all the smoke thrown off by the furnaces of a Southern tin smelter to Cottrell precipitator units. Here all tin carried in the smoke is removed by an electrical current of 65,000 volts, and added to the metal secured more directly in other stages of the pro
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Credit lineProduction. Tin smelting. Long tubes carry all the smoke thrown off by the furnaces of a Southern tin smelter to Cottrell precipitator units. Here all tin carried in the smoke is removed by an electri. 1942-01-01. Hollem, Howard R., United States. Office Of War Information. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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