Inner conductor: Single or strand silver plated copper Insulation: Extruded PTFE, taped PTFE, taped LDPTFE Outer conductor: Braided round silver plated copper, taped silver plated copper strip Jacket: FEP, PU, TPE RG, Semirigid, Low Loss, extra low loss, Tri-Coax, Flexible, extra flexible Custom Cables for high temperature.