SIC Code 3321 - Gray and Ductile Iron Foundries
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Establishments primarily engaged in manufacturing gray and ductile iron castings, including cast iron pressure and soil pipes and fittings.
SIC Code 3321 - Gray and Ductile Iron Foundries is a final level code of the “Manufacturing” Division. There are 125 companies classified in this industry in the USA with an estimated employment of 6,665 people.