The yard I'm going to won't take circuit boards or burnt #2 copper. Really, though, I've found that soaking my rough looking copper in a citric acid solution (Citric acid is easily available at wallyworld), shines it up and cleans it nice.
The yard I'm going to won't take circuit boards or burnt #2 copper. Really, though, I've found that soaking my rough looking copper in a citric acid solution (Citric acid is easily available at wallyworld), shines it up and cleans it nice.
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