; Established in 1978, Regal Corporation is one of the leading providers of heavy equipment replacement parts. The company is headquartered in Knoxville, Tenn., and has branch offices at various locations, including Miami; Arlington, Texas; and Reno, Nev. It offers various ground-engaging tools, such as adapters, teeth, trunnion assemblies, tips, brackets, pins, braces and screws to protect...