Inner conductor:0.81mm Cu/CCS/TC/ Dielectric:3.66mm PE Bonded/unbonded Al Foil Braid: 3.84mm Al/Cu/TC/Al-Mg Jacket: 5.90mm PVC Jacker Wall Thickness:0.65mm Diameter of Steel Messenger :1.30mm impedance: 75 Velocity of Propogation:85% Felix Zeng +86-13750830801 FAX:+86-571-23615068