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<p>[QUOTE=&quot;Sunbird, post: 8299009, member: 116324&quot;]Hi all – The center disc of €1 and €2 coins is composed of three layers. But the specs are confusing since they just say <b>Ni7</b> and <b>Ni12</b> for the core layers. That layer is referred to simply as &quot;nickel&quot;, in contrast to <i>nickel-brass</i> and <i>copper-nickel</i> for the two alloys in use.</p><p><br /></p><p>If it&#039;s pure nickel, why would they refer to Ni7 and Ni12? What do those numbers mean in a context where no other metal is named? See below:</p><p><br /></p><p>[GALLERY=media, 19313]Euro coin specs by Sunbird posted Apr 13, 2022 at 12:21 PM[/GALLERY][/QUOTE]</p><p><br /></p>

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