bids are invited for co2 f or e cylinder valves replacement 1 kg to 22.5 kg - for detailed please refer section v scc and section vi sow of the tender document , co2 f or e cylinder valve wheel replacement 1 kg to 22.5 kg - for detailed please refer section v scc and section vi sow of the tender document , co2 f or e cylinder safety valve 1 kg to 22.5 kg - for detailed please refer section v scc and section vi sow of the tender document , co2 f or e cylinder valves 45 kg - for detailed please refer section v scc and section vi sow of the tender document , refilling and hydrotesting of co2 cylinder 45 kg - for detailed please refer section v scc and section vi sow of the tender document , refilling and hydrotesting of co2 cylinder 22.5 kg - for detailed please refer section v scc and section vi sow of the tender document , refilling and hydrotesting of co2 cylinders 1 kg to 2 kg - for detailed please refer section v scc and section vi sow of the tender document , refilling and hydrotesting of co2 cylinders 3.2 kg to 4.5 kg - for detailed please refer section v scc and section vi sow of the tender document , refilling and hydrotesting of co2 cylinders 6.5 kg to 6.8 kg - for detailed please refer section v scc and section vi sow of the tender document , refilling and hydrotesting of co2 cylinders 9 kg - for detailed please refer section v scc and section vi sow of the tender document , refilling and hydrotesting of nitrogen cylinders upto 20 to 68 liter water capacity - for detailed please refer section v scc and section vi sow of the tender document , pneumatic testing of co2 cylinder valve of 45 kg capacity including or providing fixing reconditioning kit - for detailed please refer section v and section vi of the tender document , hydrotesting of breathing apparatus cylinders - for detailed please refer section v scc and section vi sow of the tender document , transportation and p and f charges per trip note lifting the material from gail site and delivery of same a