Air Force Staff Sgt. Andrew Plummer, an aircraft metals technology craftsman with the 1st Operations Maintenance Squadron, uses a TIG welder on a stainless-steel welding coupon at Hurlburt Field, Florida, Jan. 5, 2021. Aircraft metals technology specialists create metal components vital to the correct functioning of an aircraft.

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Photo credit: © Operation 2021 / Alamy / Afripics
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