Tenders for Manufacture And Supply Of Glass Filled Nylon-66 Insulating Liner To Drawing No. Rdso Rt/8752 To Rt/8753 For 52Kg Rail With Latest Alterations, For Use With Psc Sleeper To Drawing No. Rdso/Rt-8746 As Per Irs Specification Of Glass Filled Nylon-66 Insulating Liners Serial No. T-44- 2020 .The Alteration In Drawing And Specifications Issued By Rdso Up To Date Of Opening Of Tender Warranty Period: 30 Months After The Date Of Delivery