Tenders for Supply of Irefilling Of Hydrogen Gas, Grade-Iolar-Ii/Ultra High Puritypurity-99.9999%, Cylinder Water Ca Pacity-46.7 Ltr.Approx.7 M3, Pressure:140-150 Kg/Cm2 Along With Purity Certificate Of Refilled Gas With Same Cyli Nder. Warranty Period: 30 Months After The Date Of Delivery