Set Of Spares For Ndm1Hp Ng Locomotive. A Set Consist Of 1.)Duplex Check Valve 3/4 Inch Dlw Part No. 11376533 Qty- 01 Nos. 2.)Cdc Dirt Collector Clw Part No. 25540051 Qty-02 Nos. . No Te- Test Certificate And Warranty Certificate To Be Submitted By The Firm During The Supply Of The Material. [ Warranty Period: 30 Months After The Date Of Delivery ] ]