copper clad flat steel 1, copper layer average thickness than 0.25mm; 2, tensile strength than 600N/mm 2 3, CE,ISO9001,UL XI'AN JSBOUND TECHNOLOGY CO.,LTD is a professional grounding and exothermic welding products manufacturer and export in china.We have UL,CE,ISO9000 and other international certificates.The main products including: copper clad ground rod, exothermic welding mould, exothermic ...