annual rate contract for hydrotesting, refilling and painting of co2 cartridges and cylinders to iocl panipat refinery and petrochemical complex annual rate contract for hydrotesting, refilling and painting of co2 cartridges and cylinders to iocl panipat refinery and petrochemical complex , cartridge, co2, refilling charge: 120 gms w / hydrotesting as per enquiry cum offer item sr. no. 10 , cartridge, co2, refilling charge: 200 gms as per enquiry cum offer item sr. no. 20 , refiling of co2 gas cylinder , capacity 1kg as per enquiry cum offer item sr. no. 30 , refilling of co2 cylinder 2.0 kg as per enquiry cum offer item sr. no. 40 , refilling of co2 cylinder 4.5 kg as per enquiry cum offer item sr. no. 50 , refilling of co2 cylinder 6.8 kg capacity extinguisher as per enquiry cum offer item sr. no. 60 , refilling of co2 cylinder 9.0 kg as per enquiry cum offer item sr. no. 70 , refilling of co2 cylinder, capacity 22.5 kg as per enquiry cum offer item sr. no. 80