Tenders for Supply Of Helium Gas In Npcil Owned Cylinders, 2160 Collection Of Empty Dept Helium Cylinders And Refilling Of Helium Gas Purified As Per Attached Boq Specifications. Hydrostatic Stretch Test And Painting Replacement Of Damaged Valve Of Helium Gas Cylinders . As And When Required Basis. Cleaning Washing Pre-Conditioning Heating Flushing Purging Of Helium Gas Cylinder. As And When Required Basis. Replacement Of Damaged Valve Guard Cylinder Caps Of Helium Gas Cylinder. As And When Required Basis. Greasing Conditioning-Application Of Anti- Rust Spray Of Cylinder Body Threads. As And When Required Basis. Painting And Stenciling Of Cylinders. As And When Required Basis.
