Shaft Mounted Zr Cu Stamping Type Resistance Ring Design Of Rotor (Scheme-I)Fo R Tm Type 6Fra 6068 For Wag-9/Wap-7 Loco . To Drg No. Skel- 4881, Alt.0 To Spec. Rdso/2007/El/ Spec/ 0060, Rev.0 & Str No: Clw / 2012 / 3Ph Tm Rotor/ Str/0003, Rev.1 [ Warranty Period: 30 Mont Hs After The Date Of Delivery ] ]