Видео с ютуба How To Welding Hollow

Don't confuse welding techniques for thin metal and thick metal

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How to Weld Thin Metal Without Burning Holes: Pro Tips & Tricks

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Welding Lesson 01: Flux Core Welder Tips and Tricks

amazing! This welder shows a square tube joining technique that many may not know about

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how to weld a hollow to make it strong