At the hub of the U.S. transportation center sits the Bull Moose Tube Chicago Heights facility. Acquired in the 1983 and subsequently expanded, the operation now includes two mechanical mills providing mechanical tubing from .625" to 3" rounds and .500" to 2.500" squares and equivalent rectangles as well as selected HSS Tube sizes. The Chicago Heights operation is registered and certified under the quality assurance management system standard of ISO 9001:2000.