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hello This time, I prepared 4 inch sch 40s pipe welding. If there are many welds on one spool, it is a waste of time and poor quality. Non-destructive testing can increase the defect rate Beginners do not follow It can be very difficult mentally. But I can do it because it's Welding Mon~! haha El Primo... #tig #trap #plumber ------------------------------------------------------------ ---------- song LOST    • Tobu - Lost   ArtistTobu YouTube licensors AEI; Featherstone Music (publishing) and 3 music rights groups Yu-Gi-Oh Trap Card tag: Tig Welding Tips Tricks Argon welding know-how Tig welding technology Tig welding for beginners Welding rod ER 308L Welding rod ER 316L Argon Welding Art Tungsten Machining Tig welding beginner welding rod thickness sus welding stainless steel welding pipe welding pipe welding iron plate welding Argon welding example Tig Welding Accessories argon welding machine How to use the tig welding machine narrow gap welding wide gap welding welding asmr non-ferrous welding welding master beginner welding through welding high unit price welding expert molten zone image molten iron video repair fix purge gas repair ip repair groundbreaking radiography x-ray Korean Welder plumber How to make welding easy Learn the basics of welding