bids are invited for laying of impulse tubes of following sizes of stainless steel - titanium for process systems from take off point , manual welding of titanium impulse tubes up to 14 mm od size with wall thickness up to 2 mm and all inline components. , radiographic testing- identification of the weld joints for impulse pipes sizes upto 14 mm od and 2 mm thick. , hydro testing of impulse tubes with equivalent medium of the system at maximum upto 25 mpa loops consisting of instrument , dpt -die-penetrate testing work include identification of the weld joints, making scaffolding arrangement, shifting the dpt consumable to location , vbt - vacuum box testing for csorss transition plate welded to liner for supports. , fabrication and erection of impulse tube supports of stainless steel grade-321 perforated light channels , fabrication and erection of isa, ismc, ismb or any other cross section of ms e250 grade a of is 2062-2011 , fabrication and erection of stainless steel sections including cutting , welding by gtaw process, drilling, handling, shifting of material total quantity : 9700