Part 1: Introduction.- Nondestructive Testing for Remanufacturing.- State of the Art of Metal Magnetic Memory Technique.- Part 2: Detection on Damages of Ferromagnetic Remanufacturing Cores- Stress Induces MMM signals- Frictional Wear Induces MMM Signals- Stress Concentration Impacts on MMM Signals- Temperature Impacts on MMM Signals.- Applied Magnetic Field Strengthens MMM Signals.- Part 3: Evaluation on Repairing Quality of Ferromagnetic Remanufacturing...