Medical insurance is a part of medical insurance paid by the unit every month, and a small part is paid by itself. Then your medical insurance card will have tens of dollars every month, which can be used in pharmacies and hospitals designated by medical insurance. The payment period is 30 years. Social security is endowment insurance, and it is also a part of the company's Jiaotong University every month, but the amount is more than medical insurance. When you retire, you can calculate your salary according to your payment base and years. When the housing provident fund is a housing loan, you can use the provident fund loan with lower interest. You can use it if you don't need it. Its payment method is 100, and the company pays 200 in proportion!