General view of employees at work in the molding area of the sand foundry at the Dow Chemical Company plant in Bay City, Michigan. Sand casting (or sand molded casting) is a metal casting process wherein sand is used as the mold material for assorted foundry cores and molds.
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Dow Chemical Company. “Molding Area at Dow Sand Foundry,” circa 1953. Dow Chemical Company Historical Image Collection, Box Oversized Plants 1. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/9019s2906.
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