supply of under ground railway signaling cable size-12 core x 1.5sqmm unscreened pvc insulated pvc inner sheathed armoured pvc outer jacketunder ground railway signaling cable size-12 core x 1.5sqmm unscreened pvc insulated pvc inner sheathed armoured pvc outer jacket,under ground railway signaling cable size-12 core x 1.5sqmm unscreened pvc insulate d pvc inner sheathed armoured pvc outer jacket with high conductivity annealed conductor confirmin g to specn. no.irs-s-63/2007 amd.2 or latest [ warranty period: 30 months after the date of deliver y ] [quantity tolerance (+/-): 2 %age , item category : special (signaling cables) , total po value variation permitted: not applicable ] ]