It looks like all of these have a bulge on the top and obviously the reddish corrosion on top. I read up a little about this problem but I wanted a more professional view.

It looks like all of these have a bulge on the top and obviously the reddish corrosion on top. I read up a little about this problem but I wanted a more professional view.

| Ranking | Name | Answers |
|---|---|---|
| 1 | PCBWay Team | 3 |
| 2 | LouD _ | 2 |
| 3 | Dave | 1 |