Metals technology
Staff Sgt. Michael Desimone, 31st Maintenance Squadron aircraft metals technology craftsman, welds a fitting for a coolant machine, Sept. 16, 2013, at Aviano Air Base, Italy. Metals technology Airmen design, weld and fabricate machine precision tools, components and assemblies for aerospace weapon systems and other support equipment. (U.S. Air Force photo/Senior Airman Briana Jones)