bids are invited for gtaw or smaw processmainly .. , custom bid for services - plugging of sg tube including welder qualification on qc block for welding inconel plug with incolloy800 tube , custom bid for services - dye penetrant examination of weld joints end condition all , custom bid for services - shifting of material from main stores to welding shop or engineers store only on material issue vouchers transportation medium will be provided by npcil , custom bid for services - cleaning of pipes and pipe fittings with rotary wire brush and erection of pipes and pipe fittings in field as per layout of drawing , custom bid for services - de erection of pipes of pipes and pipe fittings in field as per layout of drawing , custom bid for services - pre heat treatment of welding joint with induction coil heating method or other alternate method end condition all , custom bid for services - post weld heat treatment of welding joint with induction coil heating method end condition all , custom bid for services - handling cleaning cutting fabrication welding and installation of piping supports , custom bid for services - shifting of structural material from main stores to welding shop or engineers store through material issue vouchers transportation medium will be provided by npcil , custom bid for services - transportation from welding shop or engineers store handling rectification modification fabrication erection including welding of steel structures other than pipe support along with necessary welding test as per syst.. , custom bid for services - transportation from welding shop or engineers store handling rectification modification fabrication including welding of steel structuresother than pipe support along with necessary welding test as per system requirem.. , custom bid for services - transportation from welding shop or engineers store handling rectification modification fabrication erection of lead sheet for main plant use including shifting of material from welding shop or engineers store to req.. , custom bid for services - de erection dismantling of structural items like plate form ladder railing etc including handling cutting grinding and shifting to scrap yard , custom bid for services - carrying out preventive maintenance checks on fire door job involves checking of fire door for smooth operation rectification work is to carried out if required total quantity :