How do I strip the paint off of these?

[ToastedWheatie]

I want to get these up and running again, but not sure the best way to strip the paint.
There's a lit of little holes there..
Chemical strip? Find someone to blast them?

 

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[sjvalleyhunter]

For something that size and designed with so many small holes, a chemical strip could get messy. Personally I would sandblast them. I think you’d get a more even and cleaner result that way. Just my opinion.

 

[Professor of Engineering]

Bead blast and repaint. Good Luck on the project!