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<p>[QUOTE=&quot;physics-fan3.14, post: 6826031, member: 19165&quot;]Yes, microns is the unit of measurement here. And while 5.1 mm may seem really deep... have you ever actually seen some of those high relief medals? The portraits or devices literally *pop* off the surface. The high relief of the best medals is simply stunning.[/QUOTE]</p><p><br /></p>

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