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I doubt you know much about welding then.

Like most professions you can become as skilled at it as you wish, depending on your willingness to work to get better. There are a lot of different types of welding, lots of different pieces of equipment to learn and master, and way more different materials to work with than most people realize.

Also, different situations present different challenges (like the fact that you have to be mindful of how your welds can warp the material).

I personally only know some the details second-hand (have professional welders in my family), but I know I'd want the guy with 20 years of experience over the one with 5, if I had something challenging I needed fixed.

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