supply of thermoplastic polyurethane spring pads (happy pads) for secondary springs of 3 phase locosthermoplastic polyurethane spring pads (happy pads) for secondary springs of 3 phase locos,thermoplastic polyurethane spring pads (happy pads) for secondary springs of 3 phase locos as per ref. no. 2 (6 mm thickness) of s.c. rly drg. no. c/els/ lgd/bogie/3/140, alt-2 & rdso sp ec no. mp.0.40.99.01 rev. 03, august 2017. material to be procured from blw vendors as per blw ite m id 2201253 or their authorized dealers only. [ warranty period: 30 months after the date of deliv ery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitt ed: max 8 lacs ] ] => limited