bids are invited for tubes upto 14mm od size with wall thickness up to 2mm , tubes upto 18mm od size with wall thickness up to 2.5mm , automatic orbital welding of stainless steel ss-321 impulse tubes up to 14 mm od size with wall thickness up to 2 mm and all inline components. , tubes up to 14mm od size with wall thickness upto 2mm , tubes up to 18mm od size with wall thickness upto 2.5mm , 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, impulse tubes , 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 , fabrication and erection of isa, ismc, ismb or any other cross section of ms e250 grade a of is 2062-2011 total quantity : 24480