Naics index Naics index description
331110 Spiegeleisen ferroalloys manufacturing
331110 Spike rods made in iron and steel mills
331110 Sponge iron
331110 Stainless steel made in iron and steel mills
331110 Steel balls made in iron and steel mills
331110 Steel manufacturing
331110 Steel mill products (e.g., bar, plate, rod, sheet, structural shapes) manufacturing
331110 Steel mills
331110 Steel, from pig iron, manufacturing
331110 Strip, galvanized iron or steel, made in iron and steel mills