Group 1 - The article explores how modern technology, particularly 3D printing and magnetic attachment, is used in the restoration of ancient bronze artifacts, highlighting innovative methods that balance preservation and restoration [1][9][20] - The restoration of the "Beast Face Pattern Bronze Zhai" involved identifying previous alterations and using advanced imaging techniques to guide the repair process, demonstrating the importance of historical context in restoration [3][4][5] - The restoration of the hollow bronze box, which was found in over fifty fragments, showcases the meticulous process of piecing together artifacts while maintaining their original integrity, emphasizing the challenges faced in such restorations [10][11][12] Group 2 - The restoration of the "Phoenix Bird Pattern Ewer" from the tomb of Liu He involved extensive analysis using modern scientific techniques to assess its condition, leading to a careful restoration plan that preserved its historical significance [15][17][18] - The restoration of the Han Dynasty thin-walled bronze basin illustrates the challenges of reshaping and repairing artifacts that have undergone significant deformation, highlighting the use of heat and specialized tools in the restoration process [21][22][24] - The article emphasizes the blend of traditional and modern techniques in the restoration field, showcasing how these methods can enhance the understanding and appreciation of ancient artifacts while ensuring their longevity [20][25]