Introduction of copper bonded steel ground rod Copper bonded steel ground rod, also known as copper-plated steel rod, is made of hard steel inside, and the outer layer of steel is plated with a layer of copper. The length is generally 1.5m, 2m, 2.5m, 3m, and the diameter is generally 14-25mm. Compared with pure copper rod, copper bonded steel ground rod saves copper material, saves cost, has...