Gem Bids For Supply Of Tube Axial Fan Of Capacity 68000 Cfm And Totalstatic Pressure Of 100 Mm Of Wc, Supply Of Tube Axial Fanof Capacity 54000 Cfm And Total Static Pressure Of 100mm, Dismantling Of The Existing Vane Axial Fan Of Rah04and Rah-08 2 Set