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- busterwasmycatLv 75 months ago
Companies that sell compressed gas in cylinders is where I always bought it. Praxair, Air Products, Linde, and similar providers. Not the sort of thing you can get at the local home improvement store though.
- Anonymous5 months ago
There are places that sell compressed gas in steel cylinders, but you don't expect me to list every location on Earth, do you?
- Anonymous5 months ago
Buy it? It's free. The air all around us is 78% nitrogen.
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