... copper powderultrafine copper powder ELECTROLYTIC COPPER POWDERAPPLICATIONWidely used in diamond tools, carbon brushes, friction materials, P/M products ... mesh (%)80-90 ATOMIZED COPPER POWDERAPPLICATIONWidely used in diamond tools, carbon brushes, friction materials, P/M products ... ) APPLICATIONWidely used in P/M oil-retaining bearings, diamond tools, filters, P/M products, bushing materials, pastes, ...