**technical specification:
1) thickness of the copper layer is more than 0.254mm(all can be done to your demand)
2) the core steel rod shall have a tensile strength of not less than 580nm/mm2.
3) the steel core is low carbon steel, and the carbon content is about 0.15%.
4) the purity of the copper using as cladding shall be 99.9% pure copper.
5) the copper ground rod will be capable of being through 90 at a maximum radius if 100mm with no copper fracture and with no ill effect on the bond between the steel and the copper cladding.
6) good in anticorrosion that usage-life is more than 50 years or more, constant low resistance and good plasticity which had the characteristics of copper as well as steel

Seaworthy exportation packaging