Tenders for Supply of Throttle Valve Assly For Pantograph Type Am-12 Of Electric Locomotive T O M/S Sil Part No-S0220110101 Or Concept Rail Engineers Pvt Ltd Drg No 0101170 & Rdso Specification Rdso/2008/El/Spec/0066 Rev 0 Dated 20.06.2008 & Amend 1 Dt 31.12.08 Warranty Peri Od: 30 Months After The Date Of Delivery