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<p>[QUOTE=&quot;expat, post: 7512612, member: 111067&quot;]Bronze is an alloy, primarily copper with about 12% tin. Copper content of 95%+ is considered copper. When copper is alloyed with zinc, if the zinc content gets too high it is considered brass.</p><p>I think this is right, long time since I was at school[/QUOTE]</p><p><br /></p>

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