muitas pessoas não sabem, o segredo da conexão de tubo quadrado de 90 graus ajudará seu trabalho
5:02
few know the trick of cutting angle iron for 90 degree joints with precise results
4:00
very few people know, the welder's trick is to make the weld stronger in thin metal | pipe cutting
5:28
The Secret to Perfect thin Square tube to pipe welding.
10:52
How to weld and round 90-degree corners! Super efficient and beautiful! Welding on another level
4:37
simple trick| how to cut a 45 degree square pipe for a 90 degree welded joint
5:40
stop bad hinge installation if you use this method
8:02
Few people know about 1mm welding
9:13