... flowing,low cost,and perfect welding effect.Needn't to use flux when brazing copper and silver ... The balance710780Close to eutectic crystal composition,low melting point,easy flow,can flow into a small ... has better plastic nature,a little higher melting point.Use for copper and copper alloy parts, ... good plastic nature,a little higher melting point.Can make many kinds of brazing ring,wires,brazing copper ...