Social security fund is a national prefix, which is mainly designed for providing for the aged after retirement. According to your contribution, you will get a fixed amount of pension after retirement.

Endowment insurance is commercial insurance, similar in nature to the previous one, but much more flexible.

Medical insurance is an insurance that reimburses part of the expenses when you go to the hospital for medical treatment or treatment. It is also divided into national medical insurance and commercial supplementary medical insurance.