Brass wire is a kind of copper wire. The internal part of the wire is made of high-quality brass, which can greatly improve the conductivity of the brass wire. The external part of the brass wire is made of high-quality insulating rubber. Some of the brass wire is made of high-quality plastic as the outer protective layer, so that the wire has a very strong conductivity and a very good outer insulation. Brass wire has good mechanical properties and good plasticity in hot state. Moreover, the wire is relatively soft and durable, which can effectively avoid various unsafe accidents.