supply of o.r fan shaped curved switch for 1 in 12 [o.r fan shaped curved switch for 1 in 12 t/o (b.g.) 60 kg on psc sleeper to rdso drg. no. t-4219 with latest alternation, and specification irs-t-10-2000 (with latest alterations) complete with all parts as listed in the drawing including plate screw but excluding ssd, grooved rubber sole plates, insulating liners, elastic rail clips, fish plates & fish bolts.]o.r fan shaped curved switch for 1 in 12 [o.r fan shaped curved switch for 1 in 12 t/o (b.g.) 60 kg on psc sleeper to rdso drg. no. t-4219 with latest alternation, and specification irs-t-10-2000 (with latest alterations) complete with all parts as listed in the drawing including plate screw but excluding ssd, grooved rubber sole plates, insulating liners, elastic rail clips, fish plates & fish bolts.],o.r fan shaped curved switch for 1 in 12 t/o (b.g.) 60 kg on psc sleeper to rdso drg. no. t-4219 with latest alternation, and specification irs-t-10-2000 (with latest alterations) complete wi th all parts as listed in the drawing including plate screw but excluding ssd, grooved rubber sole plate s, insulating liners, elastic rail clips, fish plates & fish bolts. [ warranty period: 30 months after the date of delivery ] ] , o.r fan shaped curved switch for 1 in 12 t/o (b.g.) 60 kg on psc sleeper to rdso drg. no. t-4219 with latest alternation, and specification irs-t-10-2000 (with latest alterations) complete wi th all parts as listed in the drawing including plate screw but excluding ssd, grooved rubber sole plate s, insulating liners, elastic rail clips, fish plates & fish bolts. [ warranty period: 30 months after the date of delivery ] ]