69炮最强打造高清视频,久久精品国产自产对白一区,精品久久久国产一区二区,色老汉亚洲av影院天天

The medium and low voltage power cables produced by Tongding are suitable for transmission and distribution lines with rated voltage up to and including 35KV. They are widely used in power construction, industry and mining, metallurgy, petrochemical industry, transportation and other departments. Typical application such as: urban underground power grid, power stations, the outlet line of substation, industrial and mining enterprises internal power supply. It can transmit high voltage and high current. The cable can withstand the working voltage of the power grid for a long time and various overvoltages often encountered in the operation. It can reliably transmit the power needed, and with good mechanical strength, bending performance and corrosion resistance.