There are many types of engineering wall switch sockets made of different materials on the market. With years of experience, I believe that steel as a component of wall switch sockets is safer. Some friends may ask, why not use iron? So let's introduce the reason why steel is used as a component for wall switches and sockets.

The resistance of copper is much smaller than that of iron. Some people may suggest using copper plating on the surface of iron, but the thin area of the copper layer does not greatly improve the situation of high resistance. In the presence of current, the resistance consumes power, and this energy is converted into heat. The higher the resistance, the easier it is for wall switch and socket parts to heat up, which may cause deformation or even melting of plastic parts, posing a safety hazard for our use. So that's why we don't choose copper.