... china.We have UL,CE,ISO9000 and other international certificates.The main products including: copper clad ground rod, exothermic ... welding powder, grounding electrode, GEM and so on. coated copper steel ground wire1, copper layer average thickness (conventional) ≥ 0.25mm; 2, ... mm 2 3, flatness error ≤ 1mm 4, copper layer plasticity: grounding rods bent 30 º, the angle with no cracks. Applications ...