Tenders for Supply oF Air Dryer For Freight Stock Electric Locomotive As Per Rdso Spec No. Mp 0.01.00.06 Rev-5, March-11 Str No. Mp Str.Bk.01.06.11 Rev-00 July-11 As Per Drg No. Rdso Specification No. Mp.0.01.00.06 Rev 05 March 2011 For Wap-4/Wag-7 Electric Locomotive. Warranty Period: 30 Months After The Date Of Delivery