annual rate contract for refilling of gas cylinders for iop laboratories, bhubaneswar , refiling of gas cylinders for the laboratory ( category-a ) , argon , nitrogen , oxygen , helium , hydrogen , acetylone , argon , nitrogen , oxygen , helium , hydrogen , acetylone , argon , nitrogen , oxygen , helium , hydrogen , acetylone , argon , nitrogen , oxygen , helium , hydrogen , acetylone , argon 80% and co2-20% , argon 90% and co2 10% , argon 70% and co2 30% , argon 70% and co2 30% , xenon gas , krf premix gas for the laser content: 6900 f- 09%, kr.3.83% f-09%, kr 3.83% ne-94.41% , new cylinder with gasfor the laboratory ( category-b ) , argon , nitrogen , oxygen , helium , hydrogen , acetylone , argon , nitrogen , oxygen , helium , hydrogen , acetylone , argon , nitrogen , oxygen , helium , hydrogen , acetylone , argon , nitrogen , oxygen , helium , hydrogen , acetylone , diffusion resistant single stage regulator for argon, nitrongen, oxygen, helium hydrogen acetylone gas cylinder , diffusion resistant double stage regulator for argon, nitrongen, oxygen, helium hydrogen acetylone gas cylinder , liquid nitrogen ( the supplier is required to refilled in iop nitrogen container at iop site ) , gass trolley four wheels for moving gas cylinder , bracket ( for fkxing the cylinder in wall )