... core (ZR)VV(ZR)VLV(Flame retardant) Cu, Al core PVC insulated, PVC sheathed power cable.For laying indoor, tunnel, underground and canal. Unable to bear ... .(ZR)VV22(ZR)VLV22(Flame retardant) Cu, Al core PVC insulated, steel Tape armoured, PVC sheathed power cable.For laying indoor, tunnel, underground and canal. Able ...