... :copper bounded steel ground rod 2.Diameter:3-800mm 3.Length:5.8m,6m,or as required 4.Best quality with low cost ... and 1.>This product is suitable for making rotor field pole coil of hydrogenerato. Item Copper bar ,copper rod ... ,Brass bar,brass rod Material T2,T1,TP2,TP1,TU2,C1011,C1200,C12200 ...