[Welding qualification N-2V] C-2P and pipe welding can be welded in the same way.
16:51
[Welding qualification C-2F] Tig. Arc combination Welding is easy and clean.
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被覆アーク溶接 教材 ４ V字開先（裏当てなし）１層目～３層目
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A shortcut to mastering SMAW
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Few people know about 1mm welding
6:36
[Must-see for beginners. ︎] Simple arc welding start method ♪
7:20
美しい溶接。エンジニアリング会社の溶接技術！水平固定管V形突合せ溶接
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設備屋さんのアーク溶接
21:15