What about the social security card in Beijing?

If it is a first-generation social security card (there is no UnionPay and Bank of Beijing logo in the upper right corner), you must have a Bank of Beijing passbook. If you have never received it, the unit manager can handle it for you, or you can bring a letter of introduction from the social security center to the designated social security bank. If it is a second-generation social security card (UnionPay and Bank of Beijing logo in the upper right corner)

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