Naics index Naics index description
331110 Molybdenum silicon ferroalloys manufacturing
331110 Nut rods, iron or steel, made in iron and steel mills
331110 Paste, iron or steel, made in iron and steel mills
331110 Pig iron manufacturing
331110 Pilings, iron or steel plain sheet, made in iron and steel mills
331110 Pipe, iron or steel, made in iron and steel mills
331110 Plate, iron or steel, made in iron and steel mills
331110 Powder, iron or steel, made in iron and steel mills
331110 Rail joints and fastenings made in iron and steel mills
331110 Railroad crossings, iron or steel, made in iron and steel mills