supply of fabrication and supply of 1 in 8.5 diamond crossing (without slip) b.g. (1673 mm) for 60 kg (uic) to rdso drg. no. t-6492.fabrication and supply of 1 in 8.5 diamond crossing (without slip) b.g. (1673 mm) for 60 kg (uic) to rdso drg. no. t-6492.,fabrication and supply of 1 in 8.5 diamond crossing (without slip) b.g. (1673 mm) for 60 kg (uic) to rdso drg. no. t-6492 (as amended up to date) and irs specification irs-t-29-2023 & *irs-t10-20 20 (as amended up to date) with cms acute crossings to rdso t-4967(as amended up to date) & cms obt use crossings to rdso t-6495(as amended up to date) and with all parts listed in the sub-assembly drawin gs but excluding standard fish plate, fish bolts, erc & insulating liners/ metal liners.requirement of rails f or fabrication of 60 kg 1 in 8.5 diamond crossing (without slip) (t-6492) is attached annexure-ii. [ warra nty period: 30 months after the date of delivery ] ] => limited