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-2Or Latest & Rdso Spec No. Mp.0.40.99.01 Rev -03, August 2017. Note:- Supply By Sources As Per Blw Item Id: 2201253 In Ireps Vendor Directory.