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The JSF was just an example. With a 30 cycle per hour rate it should be obvious that JSFs can't be a primary use.

They make a lot of critical parts for commercial airliners.

Parts where a high strength to weight or volume ratio is critical are the candidates for such an expensive process. I suspect most of the output is in aircraft, spacecraft, turbine blades, and possibly other machine tools. The journalist had to pick one that people would recognize.



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