crime of willful and malicious injury
1. Whoever intentionally harms another person's body shall be sentenced to fixed-term imprisonment of not more than three years, criminal detention or public surveillance;
2. Whoever intentionally harms another person's body and causes serious injuries shall be sentenced to fixed-term imprisonment of not less than three years but not more than ten years;
3. Whoever intentionally harms another person's body by particularly cruel means, causing death or serious disability, shall be sentenced to fixed-term imprisonment of not less than seven years, life imprisonment or death.
According to you, it depends on the appraisal results.
That is to say, if the appraisal result is not serious injury, it will be three years at most.