There's no way that will bend 16mm x 50mm which is what the description would make you think. It might have a capacity of 16mm in one direction and 50mm in the other direction, but not at the same time.
I doubt it would bend 50 x 8 without a huge radius. A Miracle bender is what you need to hunt out.......
Here’s mine ,the smaller Samson,which has been welded around the pivot,by me 25 years ago,and the previous owner,it can do 50/10,sometimes I’ll do hot bends with a protective jaw.
The outdoor one is the Miracle,so far I’ve only done 65/12 & 20 square.
I also have a Norfolk,that’s another story.
For manual machines,you’d have a job to equal these.