Derrick Corporation, 122 W Bruceton Rd, Pittsburgh, PA 15236, US

Robroy Industries is an organization of synergistic member companies dedicated to product and service leadership within specialty markets. Founded in 1905, the company was first incorporated under the name Enameled Metals Company. Its primary purpose was the application of enamel to pipes, sheets and other metal products. Its main product was rigid steel electrical conduit. In 1952, the company's name was changed to Pittsburgh Standard Conduit Company to better identify the company with the trade name of its primary product, Pittsburgh Standard rigid steel conduit. The company was made public in 1959. In1967, the company adopted the name of Robroy Industries. Robroy s electrical companies include Stahlin Non-Metallic, Perma-Cote PVC, Plasti-Bond, ECN/KORNS, and KorKap. Its oil-field products include Duoline Technologies. Robroy is headquartered in Verona, Pa.