I bought a 7qt deep from the same "line" of pans on ebay it was welded poorly and had a leak, I checked it with water because I didn't trust it, and yep it leaked. On the plus side the seller sent a call tag and replaced no problem at all.
I notice your looking at one of the std. size non-welded units so I can's speak to pickup fit for them? That said, I had no problem with the flange area, it was nice and thick, same as my 402 pan and my 6-pack pan from MP it was fine. I would buy another one of the imported pans if I needed again. Overall, not bad. IMHO. HTH
I can snap a pic on my pan installed, still on the stand if you'd like.