bids are invited for refilling of fire extinguisher cylinders - hydrotesting, painting and refilling of co2 flooding system cylinders, co2 fire extinguishers and clean agent fire extinguishers; hydrotesting of co2 (45 kg) cylinders; as per nit , refilling of fire extinguisher cylinders - hydrotesting, painting and refilling of co2 flooding system cylinders, co2 fire extinguishers and clean agent fire extinguishers; refilling of co2 (45 kg) cylinders; as per nit , refilling of fire extinguisher cylinders - hydrotesting, painting and refilling of co2 flooding system cylinders, co2 fire extinguishers and clean agent fire extinguishers; painting of c02 (45 kg) cylinders; as per nit , refilling of fire extinguisher cylinders - hydrotesting painting and refilling of co2 flooding system cylinders co2 fire extinguishers and clean agent fire extinguishers; hydrotesting of co2 22.5 kg cylinders; as per nit , refilling of fire extinguisher cylinders - hydrotesting painting and refilling of co2 flooding system cylinders co2 fire extinguishers and clean agent fire extinguishers; refilling of co2 22.5 kg cylinders; as per nit , refilling of fire extinguisher cylinders - hydrotesting painting and refilling of co2 flooding system cylinders co2 fire extinguishers and clean agent fire extinguishers; painting of co2 22.5 kg cylinders; as per nit , refilling of fire extinguisher cylinders - hydrotesting painting and refilling of co2 flooding system cylinders co2 fire extinguishers and clean agent fire extinguishers; hydrotesting of c02 f extn cap 2 kg; as per nit , refilling of fire extinguisher cylinders - hydrotesting painting and refilling of co2 flooding system cylinders co2 fire extinguishers and clean agent fire extinguishers; refilling of c02 f extn cap 2 kg; as per nit , refilling of fire extinguisher cylinders - hydrotesting painting and refilling of co2 flooding system cylinders co2 fire extinguishers and clean agent fire extinguishers; painting of c02 f extn cap 2 kg; as per nit , refilling of fire extinguisher cylinders - hydrotesting painting and refilling of co2 flooding system cylinders co2 fire extinguishers and clean agent fire extinguishers; hydrotesting of c02 f extn cap 4.5 kg; as per nit , refilling of fire extinguisher cylinders - hydrotesting painting and refilling of co2 flooding system cylinders co2 fire extinguishers and clean agent fire extinguishers; refilling of c02 f extn cap 4.5 kg; as per nit , refilling of fire extinguisher cylinders - hydrotesting painting and refilling of co2 flooding system cylinders co2 fire extinguishers and clean agent fire extinguishers; painting of c02 f extn cap 4.5 kg; as per nit , refilling of fire extinguisher cylinders - hydrotesting painting and refilling of co2 flooding system cylinders co2 fire extinguishers and clean agent fire extinguishers; hydrotesting of c02 f extn cap 6.5 kg; as per nit , refilling of fire extinguisher cylinders - hydrotesting painting and refilling of co2 flooding system cylinders co2 fire extinguishers and clean agent fire extinguishers; refilling of c02 f extn cap 6.5 kg; as per nit , refilling of fire extinguisher cylinders - hydrotesting painting and refilling of co2 flooding system cylinders co2 fire extinguishers and clean agent fire extinguishers; painting of c02 f extn cap 6.5 kg; as per nit , refilling of fire extinguisher cylinders - hydrotesting painting and refilling of co2 flooding system cylinders co2 fire extinguishers and clean agent fire extinguishers; hydrotesting of clean agent f e cap 2 kg; as per nit , refilling of fire extinguisher cylinders - hydrotesting, painting and refilling of co2 flooding system cylinders, co2 fire extinguishers and clean agent fire extinguishers; refilling of claen agent f extn cap 2 kg; as per nit , refilling of fire extinguisher cylinders - hydrotesting, painting and refilling of co2 flooding system cylinders, co2 fire extinguishers and clean agent fire extinguishers; painting of clean agent f extn cap 2 kg; as per nit