Signal Metal Industries is a custom job shop, specializing in building heavy equipment and machinery for original equipment manufacturers. Founded in 1973, the company has been at its Texas location for more than 25 years. Signal Metal Industries began as a heavy plate flame cutter and expanded into machining a line of plate flanges, both standard and specrods. As a diversified metal fabricating and engineering company, the company has more than 120,000 square feet of manufacturing space at its location in Irving, Texas. Signal Metal Industries maintains an inventory of more than 5,000 tons of plate and structural steel in a variety of grades and thickness.