Thermoplastic Polyurethane Spring Pad (Happy Pad ) For Secondary Springs Of 3 Phase Locos As Per Ref.No.2 (6Mm Thick) Of S. C.Rly.Drg. No.C/Els/Lgd/Bogie/3/140 Alt.2 Or Latest & Rdso Spec.No.Mo. 0.40.99.01 Rev.03 August 2017 Or Latest. [ Warranty Period: 30 Months After The Date Of Delivery ] ]