re-tender for servicing and refilling of fire extinguishers available in exchanges and offices of bsnl, thrissur ba. 1 hydraulic pressure testing including transportation 2 co2 type all capacity 3 foam type all capacity 4 powder type all capacity 5 examine all components like hose, horn and assembly etc and replacing the minor components with the spare parts available in the fire extinguisher not selected for refilling or new components as per the dot / tec approved typeand pasting the sticker ( indicating thedate of pressure testing, refilling, warranty, date of next refilling etc ) including transportation and for conducting mock drill in 5 division hqs and one administrative building once in year. 6 co2 type