bids are invited for 1.1 fabrication and welding of carbon steel piping equal and below 12mm thk , 1.2 fabrication and welding of carbon steel piping above 12 mm thk , 1.3 fabrication and welding of alloy steel piping equal and below 12 mm thk , 1.4 fabrication and welding of alloy steel piping above 12mm thk , 1.5 fabrication and welding of ltcs piping below 12 mm , 1.6 fabrication and welding of carbon steel piping non ibr , 1.7 fabrication and welding of alloy steel piping , 1.8 fabrication and welding of ss piping below 12mm thk , 2.0 erection of piping , 3.1providing assistance with ibr authorities orstatutory body for ibr related jobs in utilityboiler or hrsg , 3.2 mobilization demobilizationcharges , 3.3 erection and dismantling of tubescoils pipes , 3.4 structural items plate, angle, beam, channel etc cuting to attend the leakage , 3.5structural items plate, angle, beam, channel etcwelding to attend the leakage , 3.6 welding ofboiler hrsg t1 t11 t22 t91 t 347h etc tubes total quantity : 11570