... .Standard:GB,ASTM 3.Strength:1270mpa~1570mpa 4.Used for:communication cables Galvanized Steel Wire1.Diameter:1.57mm~4.0mm2.Standard:GB,ASTM3 ... extension, corrossion resistance, suitable for tensioning and traction.hanger frame,suspension, tying, bolting and fixing articles and communication cables and overhead ground wire. Galvanized Steel Wire