copper coated steel wire 1 copper layer average thickness than 0.25mm; 2,tensile strength less ... ,CE,ISO9000 and other international certificates.The main products including: copper clad ground rod, exothermic welding mould, exothermic welding powder, ... grounding electrode, GEM and so on. copper clad steel round wire1, copper layer average thickness (conventional) ≥ 0.25mm; 2, ...