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<p>[QUOTE=&quot;dcarr, post: 2665253, member: 4781&quot;]I&#039;m aware of the vacuum and inert gas furnaces. I may look into getting one in the future. For now, a lot of the blanks I make I would want to bead-blast anyway, even if they weren&#039;t darkened from the annealing. For example, it seems that bead-blasting and wire-brushing gold blanks helps to reduce or prevent the later formation of &quot;red spots&quot;.[/QUOTE]</p><p><br /></p>

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