bids are invited for gas piping fabrication works in laboratory supply and installation of dual cylinder manifold , supply and installation of manifold holding bracket , supply and installation of cylinder holding bracket , supply and installation of ss high pressure hose pipes for manifold to cylinder connection , installation of existing nitrogen 2 oxygen 2 high pressure oxygen regulators 2 already owned by jnarddc on the manifolds , supply and installation of ss tubing and fittings od six lines from manifold to lab regulator panel and from lab regulator panel to all instruments , installation of existing eight regulators in the lab on a suitable wall mount plate arrangement to hold regulators plate to be supplied , supply and installation of ball valves with wall mounts at every outlet of gas tubing and in grid arrangement at the lab regulator panel for re arranging lines as per the diagram attached , supply and installation of pvc casing 45 x 45 mm and 25 mm x 25 mm for the ss tubing , supply and installation of secondary regulator with wall mount for 2 instruments , labelling of lines for different gases and lines , fabrication of shed suitable for cylinder manifold system and keeping spare cylinders near the parking area. open over sides, shed area 5.5 m x 1.6 m total quantity : 499