Universal way side dtmf control phone (4 wire/2 wire) as per rdso specification no.irs-tc-82/2005 with amendment no.1 or latest.

Psc sleeper for 60 kg rail, as per rdso drawing t-8746 with latest amendment, if any,psc curve sleeper for 60 kg rail, as per rdso drawing t-8982 with latest amendment, if any

Manufacture and supply of various types of washers conforming to irs specification irs:t-10-2025 with latest amendment i.e. 30 days prior to initial date of tender opening.

Decorative thermosetting synthetic resin [decorative thermosetting synthetic resin bonded laminated sheet, size: 3x1220x 2440 mm. ir marking as per drg.,rdso shade pattern nac-sp05. as per drg.no. drg. no: rdso, sk-88143, alt-1 with latest altera specn: mat. spec: rdso, c-k 514( rev-1) with latest revision and amendment.]

Supply of underground , armoured, unscreened , railway signalling cable pvc insulated copper conductor confirming to spec. no. irs:63/2014 rev. 4.0 or latest amendment of size 12 core x 1.5 sq. mm. (specification attached)

Dynamic braking resistance (vertical) [dynamic braking resistance (vertical) fitted with ac mvrf for elec. loco as per rdso specn. no. elrs/spec/dbr/0028 (rev 0) of sep-2003 with amendment no.3 or latest.]

Nylon 66 bush for suspension of 25 kw, of size dia70x dia 58x100 for 110 v dc brushless alternator conforming to item-1 of rdso drg. no. rdso/pe/sk/tl/0086-2014 (rev2) - alteration no.1 and material conforming to specn no. rdso/pe/spec/ac/0006- 2009 (rev.1). however, the firms may quote for latest specification/drawing with amendment if any issued by rdso/icf/rcf/mcf.

Name of work:sc-wadi section: 1) replacement of existing aged codal life completed coach indication boards and at a glance display boards as per rdso/spn/tc/108/2019 (ver.- 2 ) or latest at begumpet station in sc-wadi section of secunderabad division.2)replacement of existing aged codal life completed coach indication boards and at a glance display boards as per rdso/spn/tc/108/2019 (ver.- 2 ) or latest at vikarabad station in sc-wadi section of secunderabad division.3) replacement of

Helical spring for axle guide arrangement of ac rakes of kolkata metro as per icf drawing no.dc/emu2-0-1-203 alt h/3 or latest amendment, if any. nb: (1) material to be procured from rdso/icf approved sources only. specn: as per icf drawing no.dc/emu2-0-1-203 alt h/3 or latest

Manufacturing and supply of leaf spring to rdso drg. no. t-6310 (alteration nil) for slide chair for 10125 mm curved switch with zu-1-60 thick web tongue rails b.g. (1673 mm) for 60 kg (uic) on psc sleepers and conforming to specification 55 si-7 & irs: t-42-2020 (revision 01).