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U.S. Air Force Tech Sgt. Aaron Barnes, 86th Maintenance Squadron aircraft metals technology non-commissioned officer in charge, explains how 3D printing is used to repair headsets and communications equipment at Ramstein Air Base, Germany, April 13, 2022. Brig. Gen. Josh Olson, 86th Airlift Wing commander, and Command Chief Master Sgt. Charmaine Kelley visited the metals technology section to learn about their capabilities. (U.S. Air Force photo by Staff Sgt. Emmeline James)
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