4 ms·
https://en.wikipedia.org/wiki/Friction_stir_welding https://en.wikipedia.org/wiki/Friction_stir_welding Cool! I mean hot.
by WithinReason 5y ago
https://en.wikipedia.org/wiki/Friction_stir_welding https://en.wikipedia.org/wiki/Friction_stir_welding
Cool! I mean hot.