Individuals in jianyang city pay social security.

Jianyang city Social Labor and Social Security Bureau (namely jianyang city Social Security Bureau). Just ask there! Social security cards of general enterprises are collected at social labor and social security bureaus in various places, and some units have specially sent special personnel to collect them together. If there is no special person in your unit, you can only go by yourself. You got it? If you don't understand, ask me. Because I got it myself.

Further reading: How to buy insurance, which is good, and teach you how to avoid these "pits" of insurance.