... copper ground wire clamp 1.Good conductivity 2.Strong anti-corrosive copper earthing clamps, pipe fittings copper clamp copper earthing clamps, electrical grounding clamp copper ground wire ... conncting between rod and wire1. Material: Brass, Copper and Bronze according to ASTM, DIN,JIS, ... according to customers3. Surface finish: Powder coating or painting with various colors4. Engineering service ...