supply of fabrication and supply of 1 in8.5 diamond crossing with single slip to rdso drg. no. t6493/alteration -2 complete with[curved switch] bg for 60 kg rails [uic] on psc sleepers layout with cms acute x-ings to rdso drg. no. t- 4967/ alteration-8 and cms obtuse x-ing to rdso drg. no t-6495/ alteration -1 and7000 mm or switche [curved] complete & as per specification no. irs/t-10-2025 for fabricated switch and irs:t-29 (revised-2024) for cast manganese steel crossing complete with relevant specifications for all parts as listed in the subassembly drawings but excluding standard fishplate, fish bolts, elastic rail clips and insulating liners , fabrication and supply of 1 in8.5 diamond crossing with single slip to rdso drg. no. t649 3/alteration -2 complete with[curved switch] bg for 60 kg rails [uic] on psc sleepers layout with cms a cute x-ings to rdso drg. no. t- 4967/ alteration-8 and cms obtuse x-ing to rdso drg. no t-6495/ alterat ion -1 and7000 mm or switche [curved] complete & as per specification no. irs/t-10-2025 for fabricate d switch and irs:t-29 (revised-2024) for cast manganese steel crossing complete with relevant specifica tions for all parts as listed in the subassembly drawings but excluding standard fishplate, fish bolts, elas tic rail clips and insulating liners [ warranty period: 30 months after the date of delivery ] ]