It is usually composed of metals such as silver, copper, zinc and tin. There are multiple types based on different silver contents, and they are only in the shape of strips or wires. It has a low melting point, good fluidity, can fill gaps well, and features high joint strength, good plasticity, as well as excellent electrical conductivity and corrosion resistance. Some silver brazing rods have self-brazing property when brazing copper and silver, so no flux is needed. It can be used for brazing all ferrous and non-ferrous metals except aluminum, magnesium and other low-melting-point metals, and is widely applied in industrial manufacturing fields such as refrigeration, lighting, hardware and electrical appliances, instruments and meters, chemical industry, aerospace, etc.