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To: Rink who wrote (219009)12/5/2006 2:48:18 PM
From: combjellyRespond to of 275872
 
"I can give you a guess (cheaper) but I wouldn't take that as a good answer. "

Why not? There is a fair amount of extra steps involved to keep copper from migrating into the oxide layer. Using aluminum would eliminate those steps, plus keep the copper away from oxygen.