https://www.guangzhoulongji.com/electical-wires/electrical-cables/copper-core-pvc-insulated-and-sheathed-copper.html
The products are mainly used for electrical distribution line design and AC rated voltage 300/300V; power system, industrial system, new energy system, building construction system, airport infrastructure, oil and gas and chemical industry, railway network, wind power, terminal, Harbor, lighthouse and other infrastructure.