- Choyang Medical Instrument Co., Ltd.
- Choyang Dana Choeunharu (CY-5000),Choyang RAPHA(CY-300),choyang rapha,Choyang Dana Low Frequency Stimulator (CY-1000),Choyang Dana Choeunachim (CY-3500),Choyang Dana Heating Instrument (CY-2000).
- Address:366-3,Yogwang-ri ,Chubu-myeon ,Geumsan-gun
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