... -Tin,Silver-Copper-Zinc-Cd,Copper-Zinc,Aluminum base copper welding rods / brazing rods / solder rodsPhos-copper ,Phos-Copper-Silver ,Silver ... has the characters of easily-flowing,low cost,and perfect welding effect.Needn't to use flux when brazing copper and ... higher melting point.Can make many kinds of brazing ring,wires,brazing copper and copper and copper alloy parts,brazing ample ...