... 2"11,6039000,750GRD-12/41/2"11,6041.2001,000GRD-12/51/2"11,6051.5001,250GRD-12/61/2"11, ... 6061.8001,500GRD-12/71/2"11, ... 6072.1001,750GRD-12/81/2"11,6082.4002,000GRD-12/101/2"11, ... finishing is brilliant,free of imperfections or peelings. Technique Parameters: UL ground rod.copper thickness is equal or above 0.254mm ...