bids are invited for custom bid for services - maintenance & refilling of dry chemical powder & painting & re-labeling & hydraulic pressure test of dcp type 5 kg fire extinguisher schedule qty 300 nos , custom bid for services - refilling of co2 gas cartridge of dcp type 5 kg fire extinguisher schedule qty 300 nos , custom bid for services - spares consumable if required during amc of dcp type fire extinguisher of 5 kg capacity , custom bid for services - maintenance & refilling of dry chemical powder & painting & re-labeling &hydraulic pressure test of dcp type fire extinguisher of 6 kg schedule quantity 450 nos , custom bid for services - refilling of co2 gas cartridge of 6 kg fire extinguisher schedule qty 450 nos , custom bid for services - spares consumable if required during amc of dcp type fire extinguisher of 6 kg capacity , custom bid for services - maintenance (quarterly and annual) & refilling of mono ammonium phosphate dry chemical powder &nitrogen gas, painting & re-labeling &hydraulic pressure test of abc type fire extinguisher 4 kg schedule qty 450 nos , custom bid for services - refilling of abc type cartridge of 4 kg schedule qty 450 nos , custom bid for services - spares or consumable if required during amc of abc type fire extinguisher of 4 kg capacity