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IN CONSIDERING the lubrication problems pertinent to the production machinery in this industry, we must, quite naturally, start with the raw product—iron. In other words, its refinement from the ore, by smelting in the blast furnace, and its subsequent conversion to steel in the Bessemer converter, the open hearth or electric furnace. Each has a place in the industry according to the characteristics or chemical properties of the final product.
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1970
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