supply of thermoplastic polyurethane spring padsthermoplastic polyurethane spring pads,thermoplastic polyurethane spring pads (happy pads) for secondary springs of 3phase locos as per ref.no: 2 (6mm t hickness) of.s.c.rly drg.no: c/els/lgd/bogie/3/140, alt.2 & rdso spec.no: mp.0.40.99.01 rev. note: supply by sources as per b lw item id: 2201253 in ireps vendor directory. [ warranty period: 30 months after the date of delivery ] ] , polyurethane spring pad for primary helical spring of 3-phase locos as per ref.no.1 of s.c.rly. drg.no. c/ els/ lgd/ bogie/ 3/163 (4mm thickness). note:- supply by sources as per blw item id: 2201253 in ireps vendor directory. [ warranty pe riod: 30 months after the date of delivery ] ] => limited