In developed country, copper clad steel material are good in the aspect of conducting power and mechanical strength and corrosion resistant performance, so they are widely used in grounding units. In our country the corrosion resistance and reliability are rising our attention. It is common to use copper clad steel material to replace the flat steel or zinc plated angle steel as grounding units. Huadian brand products include: copper clad steel---round steel(flat steel) ground rod are made with cold rolling heat drawing process as international technologies. Products have advantages such as thick copper coating, low resistance value, high strength, strong corrosion resistance. Products are widely used in projects such as power factory, transformer substation, communication base, airport, railroad, network machine room, gasoline and chemical industry, oil storage house etc for grounding for lighting, antistatic grounding, protection grounding.