D Iron Hot-dip Galvanized Forged D Iron Steel for Overhead Line Fitting 1. D-iron the link fitting / electric power fitting / overhead line fitting 2. The material of D-iron is malleable cast iron 3. The thicknes of zinc is more than 86mu 4. Used with the insulator in overhead line fitting 5. With ISO Galvanized D-iron bracket for composite insulator: High strength wall bracket assemble Smooth and uniform wall bracket assemble High strength steel wall bracket assemble Experienced in manufacturing Delivery fast steel pole line hardware ISO 9001 We are the manufcturer with ten years experience of wall bracket assembleused to link clamps to insulator, or to link insulator and ground wire clamp to tower or sujection stucture. wall bracket assemble special type inaccordance with mounting condition. There will no sharp edges, and corners rounded. All wall bracket assemble will be clean rust free, smooth and uniform throughout and will also be free from burrs. Galvanized steel wall bracket assemblehas high tensile strength. It is straight and uniform.And it passed ISO9001. We also can supply grounding piece according to your request.