Multiple ground rods with Copper Coated for anti thunder device

Multiple ground rods with Copper Coated for anti thunder device MODEL Copper layer Thickness Diameter Length of supply Packing Mil mm Inch mm Feet mm pc/bundles CN-A17 0.254 17.2 4 1200 20 6 1800 10 8 2400 10 10 3000 10 20 6000 5 Technical Specification: 1) The purity of the copper which used as cladding is more than 99.95%. 2) The steel core is low carbon steel which the carbon content is about 0.15%. 3) The copper bonded ground rod will be capable of being through 90 at a