¡Polaridad de soldadura eléctrica! ¡No es fácil escuchar esto de los soldadores profesionales!
11:21
Electric Welding Secret ! Why don't professional welders talk about it ?
26:52
Welding polarity and why electron theory is used (In response to #weld.com)
13:48
The fastest way to teach flat stick welding
4:50
techniques that have never been told about how to weld thin pipes | stick welding
14:40
MIG Welding Basics For Beginners
16:22
Few people know this welding secret ! TIG electrode and penetration rate !!!
13:04
Tungsten grinding angle ! If the TIG welding theory I learned is wrong...
17:47