... Steel Strength >= 600n/mm^2. Cu purity-99.9%.Tkickness-Minimum 10mil(0.254mm)-Unified GROUND ROD ... , the outer surface of which is plated with 99.9% pure copper. Copper thickness of 10mil, 13mil, ... NEED RELATIVE PRODUCTS ,PLEASE CONSULT OUR HOMEPAGE. 99.9% pure electrolytic copper molecularly bonds onto low carbon ... an electrolytic copper layer,which is minimum 99.9% pure with no trace of zinc.The ...