6 MXS metal technologist steeling the show
Staff Sgt. Armand Guting, 6th Maintenance Squadron metals technologist, shapes a metal rack to ensure its straightness June 8, 2015 at MacDill Air Force Base, Fla. Metals technologists are trained to weld aluminum, steel, titanium, and magnesium, but the most common metal is aluminum. (U.S. Air Force photo by Senior Airman Jenay Randolph/Released)