Goodrich do not trade in individual disks, except steel ones. Carbon brakes are ALWAYS done as exchange heatpacks, and the OEM regards reclaim information as proprietary and will not share it. Your only option if you want to use these disks is to approach one of the Goodrich R&O centers (you can find these from their website) and ask if they will accept them to build you a heatpack. Be prepared for a price that will take your breath away, and that's if they will do it at all since they normally deal only with airlines and will want full trace on any material they re-use.
The P/N you have is listed in the IPC as an "end plate and torque button assy" however it's a superseded P/N (latest is 134-37-x. It's from 747-400 brake P/N 2-1515-2 and the heatpacks (depending on EDL variant) are P/N 537-3 or -4