Supply of Overhauling Kit For 821 Vent Valve Part No-785259 For 3-Phase Electric Locomotives With Cc B System To M/S. Kbil Kit Part No-Xki/Kit/01590. Each Set Consists Of 11 Items In 11 Nos. As Per Annex. Warr Anty Period: 30 Months After The Date Of Delivery