Beijing FU-81 Tube Audiophile Audiophile Audio Medical Instrument Specialized Soft Sound Quality
FU-81? J Class? Used for broadcasting and medical applications. Short Wave Therapy (SWT) Capacitor field thermotherapy machine, radio frequency thermotherapy machine, high frequency thermotherapy machine, extracorporeal electric field thermotherapy machine, radio frequency thermotherapy machine, high frequency thermotherapy machine, extracorporeal electric field thermotherapy machine.