Supply of Cut Off Angle Cock With Vent For Air Brake Wagons To Rdsos Drg. No. Wd-88123-S-01, Alt-2, Details Of Parts As Per Drg. No. Wd-88123 -S-2, Alt-6 & Other Technical Requirements Conforming To Str No. 02-Abr-02, Appendix- D, Read With All Amendments., Latest Amendment. 4 Of Sept- 2016 Warranty Period: 30 Months After The Date Of Delivery