Job Recruitment Website - Social security inquiry - If you do part-time, formal and contractual work, can you pay two old-age insurance?

If you do part-time, formal and contractual work, can you pay two old-age insurance?

No, besides, it's no use paying two copies, and you won't get two copies of money when you retire. A person can only have one pension account, and can receive a pension after 15 years. Even if you can get two pensions now, you won't get two money when you retire. Because retirement requires files, two payments, and only one file. Do you think the other one is wasted?