ON/OFF of electric current is one of the most important functions of electric switches. For this purpose, a composite material of Copper Tungsten or silver Tungsten have a good electric conductivity with little arcing wear
Copper Tungsten or Silver Tungsten is widely use for the contact of switches. Because of having advantages of little thermal expansion, good thermal conductivity and large specific gravity, 
Copper Tungsten or Silver Tungsten is widely use for the contact of switches. Because of having advantages of little thermal expansion, good thermal conductivity and large specific gravity,