Detailed Product Description An earthing(grounding) system is designed to safeguard lives and valuable equipments when lightning occurs.It plays a vital role in an electrical and lightning protection system. Specifications: Steel core:Low carton high tensile steel Copper Jacket:99.9% pure electrolytic for 0.25mm thickness M12*1500mm,M12*1800mm....... M14*1500mm.M14*1800mm,M14*2000mm........ M16*1500mm,M16*1800mm,M16*2000mm,M16*3000mm.... M18*1800mm,M18*2000mm...... * Stainless steel and solid copper earth rods can be supplied on request. * Special size and copper thickness can be supplied on request emial: galaxyzhangfengATyahoo.cn MSN:f-e-ngAThotmail.com