Hi,
These seem to be in pretty bad condition, but they may still be serviceable.
the "nodules" have the worst wear on them, the rest seem ok. Are the "nodules" important or are they just for locating the pads when putting the hub together?
they look a little different, but that could just be that mine are worn...
The "nodules" seem to be very different, and the edges also seem to have a different shape.
Unless they're falling apart I'd reuse them.
With mine, I cleaned them with soap and water, then wiped all the soap residue off with a paper towl soaked with rubbing alcohol, then soaked them with a silicon type rubber treatment like armorall or something like that for a while.