... THICKNESS:According to your requirements. GROUND ROD,EARTH ROD,EARTH BAR,CCS GROUND ROD,CCS EARTH ROD,CCS ... 3.Delivery time 15days 4.Free sampleCopper Plated Ground Rods are made of high-quality Steel core coved ... rolled screw thread).Steel cores are required diameters rods with tensile strength being as high as 600N ... /mm2 so that earth rods can easily get to deep underground by impact. ...