Structure:single-strand bare copper ,polythene insulated two insulated wire twist together as couple,polythene or PVC or non-haloge jacket.
Standards:GB YD/T 83813-1997,US.Standards EIA/TIA-568-A:1995 IEC 1156-3:1995.It is appl to telecommunicate output,ISDN.ATM155Mbps,622Mbps,100Mbps TPDDI in high speed Internet,KM Internet.
