... cables. The cable is ideal for use insecurity alarm systems, SHEATH Flame Retardant PVCSHEATH COLOR Grey, White, Brown ... tinned copper or CCA,stranded,,shield or unshielded,good PVC, LZSH PVC.conductor :bare copper or tinned copper or CCA or CCS conductorinsulation ... : PVC flame proof or common PVC insulationcable core:4C ...