bids are invited for custom bid for services - maintenance of fire fighting equipment at guwahati ird - servicing of 9 kg dcp , servicing of 25 kg dcp , servicing of 50/75 kg dcp , servicing of co2 4-8 kg , servicing of co2 1-3 kg , servicing of foam trolley/tank , servicing of water cum foam monitor , servicing of hosebox , servicing of fire hose , refilling of 9 kg dcp , refilling of 25 kg dcp , refilling of 50/75 kg dcp , refilling of co2 4-8 kg , refilling of co2 1-3 kg , refilling of abc type extinguisher , calibration of multigas detector , painting of hose box , painting of water cum foam monitor , painting of foam trolley/tank , painting of 9 kg dcp , painting of 25 kg dcp , painting of 50/75 kg dcp , painting of co2 4-8 kg , painting of co2 1-3 kg , painting of abc type extinguisher , hydrotesting of 9 kg dcp , hydrotesting of 25 kg dcp , hydrotesting of 50/75 kg dcp , hydrotesting of co2 4-8 kg , hydrotesting of co2 1-3 kg , hydrotesting of delivery hose