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<p>[QUOTE=&quot;jallengomez, post: 2119405, member: 19748&quot;]Either a commercial dryer or a rock tumbler. Both can achieve the same effect of flattening all the devices equally in all directions. And believe it or not, rock tumbling is one of the more horrific ways you&#039;ll see recommended on the internet for cleaning coins.</p><p><br /></p><p>[MEDIA=youtube]h7lXS9DknP4[/MEDIA]</p><p><br /></p><p>Any extra thickness caused by the hubbing process will be directional. Almost like the device was stretched in one direction, rather than extra thickness all over.[/QUOTE]</p><p><br /></p>

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