telephone cable 1,Conductor: solid copper,size 0.50,0.60,0.64,0.70,0.90mm 2,Insulation: PVC 3,Jacket: PVC, fire-retardant PE telephone cable:1,Conductor: solid copper,size 0.50,0.60,0.64,0.70,0.90mm2,Insulation: PVC3,Jacket: PVC, fire-retardant PE or PE copper conductor telephone cable