Supply of Analog Dc Ammeter Np-72 For Charge/Discharge Of Battery 50A-0-50A, Size 72 X 72Mm Conforming To Rdso. Specn.No. Rdso/Pe/Spec/Ac/0184-2015 Rev.1, Annexure Coloumn No. 1, Sl. No. 47 Suitable For Use In Switch Board Cabinet Of Lhb Type Ac Coaches. Make : As Per Rdso Bill Of Material I.E. Ae/Muller/Zeigler/Rishabh/L&T/Yokins Catalogue No. Mr-72. Or Any Rdso Approved Vender With Latest Amendment..