Supply Of Polyurethane Pu Foam Or Silicon Foam For Transverse Lower Berth Of Size 55x670x1695 Mm For Ac Coaches To Icf Drg.no.wgscwac-6-1-002, Item-5, Alt. H/5 And Material Specification Comforming To Rdso Specification No.rdso/2007/cg-04, Rev.01 Pu Foam Or Rdso Spec.no. Rds0/2013/cg-13, Rev.01 Silicon Foam..