What material is used for DK-20 lightning arrester of Dikai Lightning Protection Company?

The shell material of DK-20 is PC, and Dikai Lightning Protection Company is a good lightning protection company. Its products are many, and the personnel and equipment are very good after the field trip. I bought it here several times, and I bought a lot every time. I still believe in the company's brand and the quality is trustworthy. Don't worry, everything is very powerful, and it will be specified in the future, and it is not expensive.