2011 Manufacture of industrial gases
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2011 Manufacture of industrial gases
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- 20.11.1 Industrial gases
- 20.11.11 Hydrogen, argon, rare gases, nitrogen and oxygen
- 20.11.12 Carbon dioxide and other inorganic oxygen compounds of non-metals
- 20.11.13 Liquid air and compressed air
- 20.11.9 Sub-contracted operations as part of manufacturing of industrial gases
- 20.11.99 Sub-contracted operations as part of manufacturing of industrial gases