손선생배관용접학원 헤비월 파이프 두줄 비드 이~쁘게 넣는법 Heavy wall pipe multi-pass welding practice video lecture.

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A lecture on how to multi-pass heavy wall pipe welding.

Trade Test 6G Bound To Europe, (freehand only) bawal ang walking the cup!!!

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Cool idea to weld stainless pipe without gaps. The feeling of reading the waves.

The best doubles welding! 환상의 복식 용접! 혼자하면 거울용접, 둘이하면 복식용접, 설치부터 용접까지!

How to practice the welding grade test in the semiconductor field.

Have you ever seen welding like this?

Perfect theory and practice related to duplex welding.

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TIG welding tips & hacks that work extremely well for smooth root connections

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If you learn Arc 2G, TIG 2G is easy