bids are invited for annual operation and day to day maintenance contract operation and day to day maintenance e and m installations for first year , operation and day to day maintenance e and m installations for second year , refilling of stored pressure water co2 type fire extinguishers , refilling of 4.5 kgs. carbon dioxide fire extinguishers , refilling of 6 kgs dcp type fire extinguishers , refilling of stored pressure mechanical foam type fire extinguishers , refilling of foam type fire extinguishers , refilling of foam afff type stored pressure fire extinguishers , refilling of 25.0 kgs., dcp type fire extinguishers , refilling of 25 kgs dcp type fire extinguishers , refilling of foam afff type stored pressure fire extinguisher , rewinding of 1.5 hp motor 1st year , rewinding of 3 hp motor 1st year , rewinding of 3 hp pump 1st year , rewinding of 5hp pump motor 1st year , rewinding of 10 hp motor 1st year , rewinding of 12.5 hp motor 1st year , rewinding of 1.5 hp motor 2nd year , rewinding of 3 hp motor 2nd year , rewinding of 3 hp pump 2nd year , rewinding of 5hp pump motor 2nd year , rewinding of 10 hp motor 2nd year , rewinding of 12.5 hp motor 2nd year , repairing of ceiling fan for 1st year , repairing of 450mm heavy duty air circulator for 1st year , repairing of 400mm pedestal fan for 1st year , repairing of 400mm wall fan for 1st year , repairing of ceiling fan for 2nd year , repairing of 450mm heavy duty air circulator for 2nd year , repairing of 400mm pedestal fan for 2nd year , repairing of 400mm wall fan for 2nd year , servicing of hvls fans for 1st year , servicing of hvls fans for 2nd year , servicing of 800a - 1600a acb for 1st year , servicing of 800a - 1600a acb for 2nd year , servicing of 2000a - 2500a acb for 1st year , servicing of 2000a - 2500a acb for 2nd year , servicing of 3200a - 4000a acb for 1st year , servicing of 3200a - 4000a acb for 2nd year , servicing of schneider make acb 1600a for 1st year , servicing of schneider make acb