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Homebrew PCBs

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Re: [Homebrew_PCBs] Chemists? Ferric Chloride and Aluminum?

2006-04-07 by guja

there is no copper.
  :)))

lcdpublishing <lcdpublishing@...> wrote:
   I assume this to be bits of Copper and not rust, but I was 
wondering if someone could explain what happened there?  
		
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