Tenders for Supply of Densified Thermal Bonded Polyester Block For Single Seater Back Rest. G.S./Lhb Coach, Size- 562X422x25mm Drawing No. Icf/Sk -3-6-1-098. Alt-B/0. Item No.-5 Confirming To Rdso Spec. No. C - K607 Rev. 2 Of Dec. 2015 With Amndt. 1 Of Aug 2016. Drg. Ref. Is Only Size & Shape Of The Cushion..