Tender For providing of annual maintenance contract / cmc of fire extinguishers - various c&w depots of thiruvananthapuram division; service or inspection of 4 kg abc powder monoammoniumphosphate fe,amc / cmc of fire extinguishers - various c&w depots of thiruvananthapuram division; painting of 4 kg abc powder monoammoniumphosphate fe,amc / cmc of fire extinguishers - various c&w depots of thiruvananthapuram division; powder refilling including replacement of spares of 4 kg abc powder monoammoniumphosphate fe,amc / cmc of fire extinguishers - various c&w depots of thiruvananthapuram division; service or inspection of 5 kg dcp type fe,amc / cmc of fire extinguishers - various c&w depots of thiruvananthapuram division; painting of fire extinguishers of 5 kg dcp type fe,amc / cmc of fire extinguishers - various c&w depots of thiruvananthapuram division; powder refilling including replacement of spares of 5 kg dcp type fe,amc / cmc of fire extinguishers - various c&w depots of thiruvananthapuram division; co2 cartridge filling of 5 kg dcp type fe,amc / c