https://www.lincolnelectric.com/en/education/training-progra...
https://www.fronius.com/en/welding-technology/our-expertise/...
I would love to see all of this in a free/paid marketplace and with a basic learning progress framework behind it.
https://www.lincolnelectric.com/en/education/training-progra...
https://www.fronius.com/en/welding-technology/our-expertise/...