Thermoplastic Polyurethane Spring Pads (Happy Pads) For Secondary Springs Of 3 Phase Loco S As Per Ref. No. 2 (6 Mm Thickness) Of S.C.Rly Drg.No. C/Els/ Lgd/Bogie /3/140, Alt-2 & Rdso Spec No. Mp .0.40.99.01 [ Warranty Period: 30 Months After The Date Of Delivery ] ]