Knight Industrial Supplies

Gibraltar Industries is a manufacturer, processor and distributor of metals and other engineered materials for industrial markets, such as the building products and vehicular industries. The company serves customers located throughout the United States, Canada, Mexico, Europe, Asia, Central America and South America. The company employs more than 4,300 people and operates more than 90 facilities located in more than 25 states, as well as Canada, Mexico and China. The company classifies its operations into three segments, including building products, processed metal products and thermal processing. Gibraltar Industries is a publicly traded company. Its shares are listed on the NASDAQ under the ticker symbol ROCK. The company is headquartered in Buffalo, N.Y.

Magtrol is a leading solutions provider for tension and torque control; motor testing; and load measurement applications. Magtrol manufactures products to measure and control torque-speed-power, load-force-weight, tension and displacement. The company is also a leading manufacturer of motor test equipment and hysteresis brakes and clutches. Specific products include load pins, displacement transducers, rotary signal transmitters, torque transducers, dynamometers, power analyzers and permanent magnet brakes. Magtrol provides repair and calibration services on all of its products. Magtrol is located in West Seneca, N.Y.