Copper
Copper is a soft, malleable, and ductile metal with very high thermal and electrical conductivity,and is used as a conductor of heat and electricity urement.The copper partly explains its high electrical conductivity (59.6×106 S/m) and high thermal conductivity, second highest (second only to silver) among pure metals at room temperature.This
The electrical conductive of pure-copper screw is better than the stainless and iron, which will provide better performance in signal reception