Fire Retardant Curtain Fabric for all AC coaches, Material and Spec- RDSO ' s No. C- 9911 ( Rev. 3 ) with Amendment- 6 ( August 2016 ) OR Latest, the shade and pattern of the Fire Retardant Curtain Fabric as per RDSO approved Sample ( colour- Red/ Mahroon/ Blue ) width- 120 +- 2 cm, Minimum Length of each roll 100 +- 5 meters and above in multiple of 5 meters.