Hook for wire shelving unit ver.2

A wire shelving unit called metal rack in Japan. This is a hook that attaches to the pipe post. I improved the pipe diameter 25 mm out of the previous publications.

[Previously published](https://www.thingiverse.com/thing:3310079), the thickness of the hook was common for pipe diameter 25 mm and 19 mm. Because the hook is thin, the support will come off, so I printed it with the side of the body facing down. However, it did not make the fillet clean. Therefore, I made a thickened version of h