3567  Industrial Process Furnaces and Ovens

Establishments primarily engaged in manufacturing industrial process
furnaces, ovens, induction and dielectric heating equipment, and related
devices. Establishments primarily engaged in manufacturing bakery ovens are
classified in industry 3556; those manufacturing cement, wood, and chemical
kilns are classified in industry 3559; those manufacturing cremating ovens
are classified in industry 3569; and those manufacturing laboratory
furnaces and ovens are classified in industry 3821.