Yearly Operation & Maintenance Of 02Nos 12-Stop 1000 Kg Fireman Lift, 02Nos 12-Stop 1600Kg, 02Nos 13-Stop 1000Kg & 02Nos 13-Stop 1600Kg Passenger Cum Stretcher Lift (Schindler Brand) At National Board Of Revenue Building (Nbr) At Sher-E-Ba...