die casting,grounding rod copper clamp, copper saddle clamp 1, Material: Copper Alloy. 2, weight:100g 3.earth rod clamp die casting,grounding rod copper clamp, copper saddle clamp1, Material: Copper Alloy.2 ... , Carbon Steel; Alloy Steel; ductile iron;gray iron;Aluminum Alloy;Copper Alloy.2, Standard: ASTM, GB or as per Client3, Professional ...