235 Hats, Caps, and Millinery Establishments primarily engaged in manufacturing hats, caps, and millinery, and hat bodies. Establishments primarily engaged in manufacturing millinery trimmings are classified in industry 2396. Establishments primarily engaged in manufacturing hats and caps of paper are classified in industry 2679; those manufacturing caps of rubber are classified in industry 3069; those manufacturing caps of plastics are classified in industry 3089; and those manufacturing fur hats are classified in industry 2371.