ANVIL COVERS FOR ROTARY DIE CUTTING MACHINES; SLIP BEARINGS FOR ROTARY DIE CUTTING MACHINES; FEED WHEELS FOR ROTARY DIE CUTTING MACHINES; CREASING AND CRUSHING RINGS FOR ROTARY DIE CUTTING MACHINES; STITCH TAB REMOVERS FOR ROTARY DIE CUTTING MACHINES; AND DOCTOR BLADES FOR ROTARY DIE CUTTING MACHINES