WELDING WORK U.S. Air Force Airman 1st Class James Moreland welds a vertical arc at the metals technology shop on Joint Base Charleston, S.C., March 30, 2010. Moreland, a metals technology apprentice, is assigned to the 437th Maintenance Squadron. Technicians assigned to the shop perform welding on ground support equipment and fabricate parts for the C-17 Globemaster III. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 299681-J-WDE85-962.jpg Photo Gallery