PITTSBURGH INTERNATIONAL AIRPORT AIR RESERVE STATION, Pa. -- Airman 1st Class Brandon Kays, 911th Maintenance Squadron metals technology specialist, mig welds a T-joint for training at the Pittsburgh International Airport Air Reserve Station, Oct. 4, 2014. Metals technology specialists fabricate metal parts for various projects, including parts for the aircraft and aircraft ground equipment.
USAF. (U.S. Air Force Graphic by Rosario "Charo" Gutierrez)