Good find
I dont mind that the pads are made in China, as long as they used Nylon PA 4.6
Its easy enough to obtain the pellets for casting. And the colour looks right. But thats not enough to prove it is the right Nylon grade.
I'm pretty sure Audi dont make the pads themselves anyway, its some big plastics factory. Could it be DuPont?
It must be a fairly straigth forward chemical test for those that knows how?