Supply of Brake Release Choke For Keo Type Distributor Valve Of Air Brake Wagon Having Bmbs Escorts. Drawing No : Bmbs Knorr Pt. No. C156067/1 Or Escorts Pt/Drg. No. 4A 31657/13, Alt. 35. Material And Specification : As Per Drawing And Conforming To Rdsos Spec. No. Wd-23- Bmbs -2008 Rev. 1 Amend. No. 1 Of Sept. 2016. Warranty / Guarantee : The Firm Shall Stand Guarantee, Unless Otherwise Specified In The Specification Of Individual Component/Sub Assembly, For A Period Of 36 Thirty Six Months From The Date Of Fitment Of The System.