Tender For providing of custom bid for services - annual maintenance contract of portable first aid dcp type fireextinguishers item 1 cost of refilling painting pressurization repairing maintenance hydraulic pressure testing and inspection of fireextinguishers for a period of 03 years,custom bid for services - item 2 cost of trip inspection of fireextinguishers during each primary maintenance of rakes in both day and night shifts at bhavnagar porbandar and veraval depots for a period of 03 years,custom bid for services - item 3 cost of material supply of materials spare parts as required for the annual maintenance contract of dcp type fireextinguishers for a period of 03 years