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<p>[QUOTE=&quot;desertgem, post: 8194771, member: 15199&quot;]I used to have a copper wire brush that was more flexible than most hair bristle brushes. I used it for electronics when etching boards for my first computer in mid 70&#039;s. Never thought of it for coins until now <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie1" alt=":)" unselectable="on" unselectable="on" />&nbsp; </p><p><br /></p><p>&quot;the diameter of the copper brush wire of Bridgold is much thinner than that of the conventional copper stranded wire. The diameter of the monofilament is 0.05 mm-0.07 mm, and the effect is also much softer than copper strands wire&quot;.&nbsp; From a manufacturer advertisement.&nbsp;&nbsp; Jim[/QUOTE]</p><p><br /></p>

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