Refilling Of Nitrogen (N2) Gas, Grade-Iolar-Ii/Ultra High Purity (Purity-99.999%), Cylinder Wat Er Capacity 46.7 Litres (Approx. 7 Cu. Meter.), Pressure- 140-150 Kg/Sq. Cm. Along With Purity Certificate Of R Efilled Gas In Same Cylinder Provided By E.Rly/ Carshed/ Bandel. [ Warranty Period: 30 Months After The D Ate Of Delivery ] ]