Tender for Supply Of Ultrapure (99.997%) Nitrogen Gas To Be Refilled In Railways Own Cylinder After Cleaning Valve T Esting And Other Necessary Testing Of Cylinders. Cylinders To Be Lifted From Els/gmo,s Store And To Be Hand Ed Over To Same After Refilling. [ Warranty Period: 30 Months After The Date Of Delivery ] in Dhanbad - Jharkhand

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