This is very interesting: https://www.youtube.com/watch?v=ljOoGyCso8s https://www.youtube.com/watch?v=ljOoGyCso8s It's a tour of JLCPCB's factory, where they g

This is very interesting: https://www.youtube.com/watch?v=ljOoGyCso8s https://www.youtube.com/watch?v=ljOoGyCso8s It's a tour of JLCPCB's factory, where they go through all the PCB manufacturing steps. (They just cover the PBC itself, not the assembly service.)