Fiskars from Finland sells red dot award winning steel pans with a 25 year guarantee. As a Finn I’m biased of course :)

Here’s a link: https://www.finnishdesignshop.com/en-gb/product/all-steel-frying-pan-28-cm-4

Demeyere is made in Belgium afaik

What are you - paneuropean? Yikes.

Lots of choice here (they mention the country of origin): https://cookinglife.eu/collections/frying-pan-without-non-stick-coating

Another vote for deBuyer, we’re very happy with their carbon steel pans and eyeing the stainless steel ones. Made in France.

At home, we use the French made De Buyer

I have experience with this brand. Top notch.

https://schulteufer.de/pfannen/

I can recommend the stainless steel pans from DeBuyer, made in France https://www.galaxus.ch/en/s2/product/de-buyer-pan-alchimy-28-cm-28-cm-frying-pan-stainless-steel-pots-pans-17734607

i use also a lot of their product for pastry, everything has an amazing quality and durability