Hàn leo góc 3F lót sứ
13:59
Why doesn't any welder tell you this super easy 3G welding trick?
13:09
Why doesn't any welder tell you this 3G welding tip?
7:37
Nguyễn Văn Long 4G Co2 lót sứ ( Đan Mạch)
12:19
Cast Iron repair
5:32
2G Welding (Korea welding master Lee Sangman) (이상만 대한민국 용접 품질 명장, 삼성중공업 용접 명장) 송원국제 ,외국인 용접공
7:45
3g welding is extremely easy for beginners
18:18
tips 3G backing cermik 2024 #fcaw#backingceramik#khosipa#jobkorea#3g#tutorial
33:41