Amit Make Hvac Spare Differential Pressure Switch (50-500 Psi) As Per Rdso Specification No.Rdso/Pe/S Pec/Emu/0196-2019 (Latest) Along With Latest Annexure And Addendum/Corrigendum To M/S.Amit Item Code T18 171 Sui Table To Vb Rakes As Per Icf/Chennai Price Agreement No.08/25/1118/1009, Dated 12/06/2025 To Item No.4 And Pl No 3 1906904. It Is Changed As Condition Basis In Vande Bharat Rake No.4. Warranty Period: 30 Months From The Date Of Sup Ply. [ Warranty Period: 30 Months After The Date Of Delivery ] ]