Tenders for Supply of Nylon Insulation For Gauge Tie Plate Complete Consisting Of A Insulation Plate To Drg. No. T. 10372 Alt-2 Or Latest - 01 No, B Insulating Bush To Drg. No. T- 10368 Alt-1 Or Latest-03 Nos. C Insulating Washer To Drg. No. T.10371 Alt-2-06 Nos. As Per Spec. Irs-S- 40/84..