Inner conductor:1.63mm Cu Dielectric:7.11mm PE Bonded/unbonded Al Foil Braid: 7.29mm Cu/ Jacket: 10.03mm PVC Jacker Wall Thickness:1.07mm Diameter of Steel Messenger :1.83mm impedance: 75 Velocity of Propogation:85% Felix Zeng +86-13750830801 FAX:+86-571-23615068