Greg Epperly

Greg Epperly retired in 2002 from the United States Army after 20 years in calibration electronics. He has been writing professionally since 1985. He has written various calibration and electronics training materials, and numerous operational and quality-control procedures. Epperly has a Bachelor of Science in management studies from the University of Maryland.

What Is the Strength of L9 Bolts?
Contributed by Greg
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