SIC Code 3532 Companies

Establishments primarily engaged in manufacturing heavy machinery an equipment used by the mining industries, such as coal breakers, mine cars, mineral cleaning machinery, concentration machinery, core drills, coal cutters, portable rock drills, and rock crushing machinery. Establishments primarily engaged in manufacturing construction machinery are classified in Industry 3531; those manufacturing welldrilling machinery are classified in Industry 3533; and those manufacturing coal and ore conveyors are classified in Industry 3535.