Broadly used iron or aluminum metal accessories for transmitting wires, collectively referred to as hardware. There are various types of hardware with different uses, such as various wire clamps for installing conductors, various hanging rings for forming insulator strings, various pressure sleeves and repair sleeves for connecting conductors, various types of spacing rods on split conductors, and also various types of tension hardware for towers, which are related to the size of the protective conductors and must be matched with each other.