1. Direct sales: Zhenghe bioelectrical physiotherapy instrument can be purchased directly through Zhenghe official website or officially authorized dealers.
2. Online sales: Zhenghe bioelectrical physiotherapy instrument can be purchased through online shopping malls, auction websites and other online platforms.
3. sales of medical institutions: Zhenghe bioelectrical physiotherapy instrument can be purchased through medical institutions, hospitals, clinics and other institutions.
4. sales of medical device agents: Zhenghe bioelectrical physiotherapy instrument can be purchased through medical device agents.