supply of poh kit for automatic pressure modification device.poh kit for automatic pressure modification device.,poh kit for automatic pressure modification device (knorr design) of air brake wagons having bmbs consisting of 23 items. specification :- (i) as per rdso spec ification no. wd 23-bmbs-2008 (rev. 1) with amendment no. 1 of sept 2016. (ii) as per rdso drg. no. wd-08096-s-01, alt. 2. (iii)as per enclosed annexure-a of this item suitable to fit ment for knorr design, automatic pressure modification device(confirming to kbi p art no. 1.3.5114) of air brake wagons having bmbs (knorr design). [ warranty period: 36 mo nths after the date of delivery ]