... 1*7,1*19 3.Standard:GB,ASTM,BS,JIS 4.Used for:communication cables , overhead ground wire 1.Diameter:4.71mm~15mm2.Structure:1*7,1 ... *193.Standard:GB,ASTM,BS,JIS4.Used for:communication cables , ... of service available,less structure extension, corrossion resistance, suitable for tensioning and traction, hanger frame,suspension, tying, bolting ...