Manufacture and supply of 6mm thick Nylon Cord Reinforced GRSP for placing beneath rails at turnout conforming to RDSO Drg. No. T- 4218, Alt- 8 for 1: 12/ 60 Kg turnout conforming to IRS Specification for 6mm thick Nylon Cord Reinforced Grooved Rubber Sole Plates for placing beneath rails at turnouts, Provisional ? 2020, Revision 1. 0, Serial no. RDSO/ M & C/ RP- 201/ 2020, The Alt in Drawings and specification issued by RDSO up to one month prior to tender opening date shall be applicable in this tender.