Supply Of Brushless Dc Railway Carriage Fan, 110 V Dc, 400mm Sweep Fixed Type. Rdso Spec No. Rdso/pe/spec/tl/0021/2005rev.3, Amndt.1 Spec: Rdso/pe/spec/tl/0021/2005rev.1 Or Latest. Make/brand:- Spj Noida/crompton/havells Or Similar.