Bone cement mixing cups are used for orthopedic surgery bone cement mixing, requiring high strength, corrosion resistance and smooth internal surface, adapting to bone cement mixing and clinical use, no residue and contamination. Traditional injection molding assembly has gaps, easy bone cement residue, difficult to clean. DaokeDao laser welding realizes seamless connection of mixing cup housings, suitable for medical-grade high-strength PP materials, forming a firm and smooth weld, internal surface burr-free, no bone cement residue, easy to clean and use. The weld has high chemical resistance, adapts to bone cement raw material erosion, no deformation and cracking. The non-contact process does not introduce contaminants, complying with orthopedic surgical device safety standards. The equipment supports customized production of different specifications mixing cups, helping orthopedic instrument manufacturers improve product applicability and surgical safety.