supply of cms crossing 60 kg 1 in 12cms crossing 60 kg 1 in 12,manufacturing and supply of cms crossing for bg. 60 kg [uic] on psc sleepers 1 in 12 to drg. no. rdso/t-4220 alt- 7(latest alteration) and spn. irs: t-29 (revised-2023) for cast manganese steel cross ing and drawings complete with c.i. distance blocks, grooved rubber pad, packing pieces, m.s.tapered wash ers, check blocks and bolts of different sizes as listed in the drawing excluding other items indicated in the drawi ng. [n.b. term- latest - wherever used will mean the alteration/amendments up to 7 days before the date of clo sing of tender] [ warranty period: 30 months after the date of delivery ] ]