Manufacture and supply of 6 mm thick Nylon Cord Reinforced Grooved Rubber Sole Plates for 60 Kg 1 in 8. 5 Turnout ( As Drg mention in RDSO letter No. CT/ PTX dated 21. 10. 2021 or any update ). Specification IRS/ T- 55/ 2023 with latest alterations. The term