Gl earthing electrodematerial of this manufactureisone of the Earthing Products . The rewis galvanized iron. The length of GIearthing electrode can be 2 meters or 3 meters and Also 1 meters,In this we have various options of diameter of the electrode as 40mm, 50mm 60mm, 80mm,galvanizedper your requirements and also the coatingsuch100mm and 110mm. As it is airon rod there isa zinc coating of up to 100 microns ascorrosion process