40 Medical metal finishing for others; Anodizing, acid etching, electrochemical treatment, laser treatment and coating for dental implants; anodizing, acid etching, electrochemical treatment, laser treatment and coating for orthopedic prostheses; anodizing, acid etching, electrochemical treatment, laser treatment and coating of prostheses for the spinal column; anodizing, acid etching, electrochemical treatment, laser treatment and coating of prostheses for maxillofacial or neurosurgical reconstruction; anodizing, acid etching, electrochemical treatment, laser treatment and coating of articles for osteosynthesis, namely, metal plates for medical use and orthopedic fixation devices used in orthopedic transplant and/or implant surgery; Anodizing, acid etching, electrochemical treatment, laser treatment and coating for surgical instruments and toolings; anodizing, acid etching, electrochemical treatment, laser treatment and coating for surgical cases and trays; Anodizing, acid etching, electrochemical treatment, laser treatment and coating for medical devices; Anodizing, acid etching, electrochemical treatment, laser treatment and coating for medical instruments