... board plating 1)CuO%,98%;Cu,78.2% 2)Package,25kg/bag 3)Usage,Ferrite magnetic material copper oxide powder price for circuit ... to metallic copper. Use:1)used for circuit board plating,2)Ferrite magnetic materials and other electronic industries, glass, ceramic, enamel, paint ... .0002---Acid insoluble ≤%0.010.20.2Cl¯ ≤%0.010.20.2 copper oxide powder price for circuit board plating