K kokowawa Member Joined Aug 24, 2010 Messages 11 Jan 25, 2011 #1 pls i want to ask about how much copper in 400 lb of mother board and cards
S seawolf Well-known member Joined Oct 18, 2010 Messages 285 Jan 25, 2011 #2 From a refiner I spoke with on the phone 25 - 30% by weight. Hear say only for what it is worth.
