201111 - Hydrogen argon noble gases nitrogen and oxygen - 112 Manufacturers List

2011112000 - Argon - 27 Manufacturer
2011113000 - Inert gases (except argon) - 9 Manufacturer
2011115000 - Hydrogen - 9 Manufacturer
2011116000 - Nitrogen - 32 Manufacturer
2011117000 - Oxygen - 31 Manufacturer