bids are invited for custom bid for services - 1 providing supply of ibr bed coil tubes as per tender documents , custom bid for services - 2 providing supply of ibr bed coil bends as per tender documents , custom bid for services - 3 removing refitting of ibr smoke tubes as per tender documents , custom bid for services - 4 chemical cleaning of boiler boiler shell tubes including chemicals taking approvals from jt director of steam boiler as per tender documents , custom bid for services - 5 ultrasonic testing of boiler shell drum plate tubes etc by ultrasonic testing machine as per tender documents , custom bid for services - 6 providing fabrication and replacement of blow down pipe line having size 40 nb x 12 mtr long with necessary fittings etc as per tender documents , custom bid for services - 7 dismantling inspection and checking repairing or replacement of corroded pipings of air preheater of boiler including providing of all necessary material as and when required as per tender documents , custom bid for services - 8 bed coil inlet header bonnet and seat repair or replacement as per tender documents , custom bid for services - 9 labor only for removal and dismantling of wall and roof of boiler furnace constructed of fire clay bricks 450 mm thick appx of boiler furnace suitable for replacement of ibr bed coil tubes as per tender documents , custom bid for services - 10 labor only for reconstruction and repairing of damaged and dismantled walls roof having 450mm thick appx relining of fire clay brick for wall and tile for roof as per tender documents total quantity :