carbon brush 1)CNPC brand,high quality 2)Cu:99.6 3)Factory price 4)Port nearby advantage carbon brush of copper powderELECTROLYTIC COPPER POWDERTECHNICAL DATA PROPERTIESDendritic light rosy powder,easily oxidizedle in the moist air and soluble in heated sulfuric acid or nitric acid.High purity, dendritic shape powder,high electrical and thermal conductivity. APPLICATIONWidely used in diamond ...