1. Power system

　　The wire and cable products used in the power system mainly include overhead bare wires, busbars (bus bars), power cables (plastic cables, oil-paper power cables (basically replaced by plastic power cables), rubber sheathed cables, overhead insulated cables), branch cables (Replace part of the bus), electromagnetic wires, and electrical equipment wires and cables for power equipment.

　　2. Information transmission system

　　Wires and cables used in information transmission systems mainly include local telephone cables, television cables, electronic cables, radio frequency cables, optical fiber cables, data cables, electromagnetic wires, power communications or other composite cables.

　　3. Mechanical equipment, instrumentation system

　　Except for overhead bare wires, almost all other products have applications in this part, but mainly power cables, magnet wires, data cables, instrumentation cables, etc.