Red copper is a relatively pure type of copper, which can generally be approximated as pure copper. It has good electrical conductivity and plasticity, but its strength and hardness are relatively poor. At present, my country's copper processing materials can be divided into: ordinary copper (T1, T2, T3, T4), oxygen-free copper (TU1, TU2 and high-purity, vacuum oxygen-free copper), deoxidized copper (TUP), adding a small amount of alloying elements Four types of special copper (arsenic copper, tellurium copper, silver copper). Since the electrical conductivity and thermal conductivity of copper are second only to silver, copper rods are mainly used to make electrical and thermal equipment.