1.rg59 have copper/ccs/ca. 2.Standard:IEC,VDE,BS,UL,AS RG59 ... Thickness and 85% Prorogation VelocityCenter conductor: 0.81 + 0.01mm, solid copper/copper clad steelDielectric: 3.66 ±0.05mm, foam PE ... /solid PEShield: aluminum foil/bonded aluminum foilBraid coverage: 40 to 95% ...