... .With preformed rods' special design,it can keep tension clamp not produce the stress concentration which damage ADSS cable and ... wall layer of emery stick, and enhance the friction between clamp and cable.Tension rods:Galvanized steel precision, the heart- ... Galvanized steel precision, clip embedded in the U-bend Clamp head, the protection Clamp connection with the extension rod. Failure load is 40kN ...