... purity:99.7% CNPC POWDER BRAND OEM atomized copper,electrolytic copper,ultrafine copper pure copper powder ELECTROLYTIC COPPER POWDERTECHNICAL DATA PROPERTIESDendritic light rosy powder,easily oxidizedle ... used in diamond tools, carbon brushes, friction materials, P/M products and abrasive materials,pastes, electrical and electronic applications. STANDARD SPECIFICATION ...