Materials engineer Lee Gulley and engineer Noel Tracy (left to right) perform an ultrasonic test of a graphite epoxy panel. The technicians work in the Materials Laboratory, Air Force Wright Aeronautical Laboratory, Air Force Systems Command. Base: Wright-Patterson Air Force Base State: Ohio (OH) Country: United States Of America (USA)

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Size: 2870px × 1920px
Photo credit: © NB/ROD / Alamy / Afripics
License: Licensed
Model Released: No

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