sui sui

Hi, thank you very much for your attention to my question, as you said, the shared file was created with (SpaceClaim2021), unfortunately, it can't recognize sheet metal features and can't be expanded, I hope the subsequent version can support similar features, this artifact doesn't seem to be complicated, thanks again for your support.
Best wishes: Good luck!
(My English is not very good, so I use the software to translate the text, so please bear with me if I am wrong.