Bonded or Rivited?
I sold auto parts for 15 years in a previous life. We carried traditional name brands, BEFORE stuff became third world'd. Raybestos, Wagner, Bendix if we could not get the first two, etc
In that 15 years, I don't think I saw 4 shoes "come back" unbonded. It just might be that when rivets come loose or lining becomes unbonded, the lining is ALSO toast, as it might have been caused by immersion in water or really severe heat or other such causes.
Part of my job was turning drums and rotors, and I've turned THOUSANDS of 'em. Kwik-way rotor machine, like this one
old red Van Norman drum lathe, there are no photos of it, they've all been turned into fossils by now,
and later, a new Ammco lathe.
I've also "spent some time" stompin' on an all manual all the time rivet machine for things like jammer and winch brakes that needed to be re-lined They are no 'dam fun. You get to spend a lot of time on one foot
And let's not forget the asbestos dust generating machine of all time, the arcing machine