supply of procurement and supply of 1 in 8.5 diamond crossings & 1 in 12 cms crossing for scissors crossings, 1 in 8.5 diamond crossing single slips ( curved switch ) b.g. for 60 kg rails on psc sleepers layout complete to rdso drg. no. t-6493 with cms acute crossings as per rdso drg. no. t-4967, cms obtuse crossings as per rdso drg. no. t-6495 and grsps as per list given in rdso drg. no. t-6493 and including tongue rails to rdso drg. no. t- 6494 / 1 and stock rails to rdso drg. no. t-6494 / 2 & 3 and latest alteration complete with all parts listed in the sub assembly drawings ( but excluding psc sleepers, ercs and insulating liners / metal liners ) . [ warranty period: 30 months after the date of delivery ] , cms crossing for scissors crossover b.g. 60 kg 1 in 12 as per rdso drg. no. t-8109 for general layout and part drawings ( as per irs specification t-29-2022 with correction slip no. 6 of nov, 2007 for cms crossings ) each set consists of ( 1 ) cms crossings 1 in 12 60 kg rh acute to rdso drg. no. t-8110 with complete fittings ( 2 ) cms crossings 1 in 12 60 kg lh acute to rdso drg. no. t-8113 with complete fittings ( 3 ) cms crossings 1 in 6 60 kg acute to rdso drg. no. t-8116 with complete fittings ( 4 ) cms crossings 1 in 6 60 kg obtuse to rdso drg. no. t-8119 with complete fittings. [ warranty period: 30 months after the date of delivery ]