Tender for Supply Of Refilling Of Oxygen Gas Nitrogen Gas And Maintenance Of Gas Cylinders At Ntpc Rihand - M1060101007-gas Chem Oxygen 99.9percentage Is309 , M1060150203-gas Chem Nitrogen 99.98percentage Gr-1 Is1747 , Cylinder Cap , Spindle , Drilling Out Broken Spindle , Gland Nut , Cylinder Testing , Painting Charges , Degreasing Charges , Cylinder Valve , Drilling Out Broken Valve , Washer , Neck Ring , Bottom Ring in Sonbhadra - Uttar Pradesh

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