<table border="1" cellspacing="0" cellpadding="8"><tbody><tr><td>Application</td><td>Lightning protection grounding system</td><td>Material</td><td>Copper Bond Steel</td></tr><tr><td>Item</td><td>Copper Earth Ground Rod Earth Rod</td><td>Material</td><td>Copper Layer and Steel Core</td></tr><tr><td>Copper layer thickness</td><td>>=0.254mm,or Custom Thickness</td><td>Purity of Copper</td><td>>=99.95%</td></tr><tr><td>Tensile strength</td><td>>=580Nm/mm</td><td>Straightness error</td><td><=1mm/m</td></tr><tr><td>Service life</td><td>>=50 years</td><td>Diameter</td><td>7mm~25mm,or Custom specifications</td></tr><tr><td>Length</td><td>1.2m~3.0m(4ft~10ft),or Custom Length</td><td>Certication</td><td>ISO9001: 2008</td></tr></tbody></table>
