HRSG 모듈튜브 거울용접 3
9:47
HRSG 모듈 튜브 거울용접 1
17:18
철과 스테인레스를 용접하려면
17:19
Making Japanese Steel Knives since 1796! EDO Period blacksmith!
16:35
Amazing Barbell Plates Making Process!Large Barbell Forge Factory!
2:33
[현재진행중인과정] 5일차 가스텅스텐아크용접 배관용접과정 - 처음 아크를 일으키고.
59:36
A Japanese craftsman who has dedicated his life to making acoustic guitars. アコースティックギター 製作
19:02
Melting 50 Million Tons of Iron Ore! Process of Making High Quality Wire Rods in Korea
9:53