331  Steel Works, Blast Furnaces, and Rolling and Finishing Mills

This industry group includes establishments primarily classified as steel
works, blast furnaces (including coke ovens), and rolling mills;
establishments primarily engaged in manufacturing electrometallurgical
products, except steel; establishments primarily engaged in steel
wiredrawing and manufacturing steel nails and spikes; manufacturing cold-
rolled steel sheet, strip, and bars; and establishments primarily engaged
in the manufacture of steel pipe and tubes.