I found a YouTuber that collects footage of manufacturing processes in South Korea for a variety of products, and some of them of are really interesting -

https://www.youtube.com/c/FactoryMonster_

Check out "Process of Making Traditional Rice Cooker by Cutting Huge Stone. Korean Pot Factory": https://www.youtube.com/watch?v=0luoGkddtYw

or the channels documentation of scrap processing into H-Beams:

https://www.youtube.com/watch?v=MfaqrVFnQBQ

This poster has some great stuff, from stone cutting to steel mills (seriously some great videography). Their subtitles are pretty nice. Cheers!