... ,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,6C,8C,etc are availableRip ... PVC-flame proof or common PVC insulation,CMP,CMApplication: used for alarm mechanisms or security system. fire alarm cables 8 core with high quality