supply of pvc insulated armoured, unscreened, underground railway signaling copper cable 6 core x 1.5 sq mm etc. (detailed description as per item description) , pvc insulated armoured, unscreened, underground railway signaling copper cable spec: ir s:s-63/2014 (rev.4.0) or latest 6 core x 1.5 sq mm [ warranty period: 30 months after the date of delive ry ] ] , pvc insulated armoured, unscreened, underground railway signaling copper cable spec: ir s:s-63/2014 (rev.4.0) or latest 6 core x 1.5 sq mm [ warranty period: 30 months after the date of delive ry ] ] , pvc insulated armoured, unscreened, underground railway signaling copper cable spec: ir s:s-63/2014 (rev.4.0) or latest 6 core x 1.5 sq mm [ warranty period: 30 months after the date of delive ry ] ]