supply of 1 in 8.5 diamond crossing (without slip) to rdso drg. no. t-64921 in 8.5 diamond crossing (without slip) to rdso drg. no. t-6492,manufacturing and supply of 1 in 8.5 diamond crossing without slips bg for 60 kg. rails [uic ] on psc sleepers layout to rdso drg. no. t-6492/ latest alteration complete with cms acute x-ings to rds o drg. no. t4967/latest alteration, cms obtuse x-ing to rdso drg. no. t-6495/latest alteration and with all parts listed in the sub assembly drawings but excluding standard fish plate, fish bolts, elastic rail clips an d insulating liners/ metal liners. [ warranty period: 30 months after the date of delivery ] ]