Inner conductor:1.02mm Cu/CCS/TC/ Dielectric:4.57mm PE Bonded/unbonded Al Foil Braid:4.57mm Al/Cu/TC Jacket: 6.8/7.06/7.52mm PVC Diameter of Steel Messenger:1.30mm impedance: 75 Velocity of Propogation:85% Felix Zeng +86-13750830801 FAX:+86-571-23615068