Tenders for Supply Of Pre-Stressed Mono Block Concrete Sleepers For 1 In 16 Psc Turnouts As Per Rdso Drg. No. Rdso/T-5691 With Latest Alterations And Part Drawing Thereof To Suit 60 Kg Uic Rail/52 Kg Rail And To Irs Specification T-45 4Th Rev Mar-21, Both As Amended Up To Date Duly Loaded Into Wagons/Roa D Vehicles. Warranty Period: 60 Months After The Date Of Delivery