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<p>[QUOTE="TheFinn, post: 3217771, member: 90102"]XFR testers are good, but as mentioned, only on the surface and depending on type, to a little depth. If something has a thick plating, they fail.</p><p>Specific gravity is still very useful except when W is involved, and that goes for both.[/QUOTE]</p><p><br /></p>
[QUOTE="TheFinn, post: 3217771, member: 90102"]XFR testers are good, but as mentioned, only on the surface and depending on type, to a little depth. If something has a thick plating, they fail. Specific gravity is still very useful except when W is involved, and that goes for both.[/QUOTE]
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