Supply of High Pressure Gauge Hp / Indicating Instrument, 0-40 Microbar, As Per Part No Sr-075-1053 Of M/S Sidwal Or Equivalent, Confirming To Rdso Specification No.Rdso/Pe/Spec/0061-2005 Rev-1, Accepted Make- Sifam Or Any Other Make With Prior Approval Of Rdso. Suitable For Use In Lhb Type Rmpu Eog Ac Coaches..