... , tinned copper or CCA, alarm cable. 2.shield or unshield, PVC LSZH ALARM CABLESECURITY CABLE 7/0.20mm stranded or 14*0 ... *0.20mm or 7*0.24mm copper, tinned copper or CCA, stranded, shield or unshield, good PVC, LZSH PVC1.Conductor: bare copper ... or tinned copper or CCA or CCS conductor2. Insulation:PVC-flame proof or common PVC ...