HSN code HSN description GST 9019 Mechano-Therapy Appliances; Massage Apparatus; Psychological Aptitude-Testing Apparatus; Ozone Therapy, Oxygen Therapy, Aerosol Therapy, Artificial Respiration Or Other Therapeutic Respiration Apparatus 12% 901910 Mechano-Therapy Appliances; Massage Apparatus; Psychological Aptitude-Testing Apparatus 12% 90191010 Mechano-Therapy Appliances; Massage Apparatus; Psychological Aptitude-Testing Apparatus; Ozone Therapy, Oxygen Therapy, Aerosol Therapy, Artificial Respiration Or Other Therapeutic…