There are many manufacturers of raw materials for making polyethylene sheets. At present, the best reputation is the polyethylene sheet in Otto Bok, Germany. As far as I know, Delin doesn't have its own plates.

But it takes medical technology to make good things. If the technology is not good, even the best plate is a waste.

Therefore, it is suggested that you go to a regular prosthetic orthosis assembly unit to assemble braces. It is best to choose Otto Bok's plate. Of course, the price is not cheap, it costs 2-3K.