At present, in bank loans, I or my legal representative and relevant personnel need to sign a power of attorney to authorize financial institutions that handle loans to inquire about personal or enterprise credit information through the credit information system of the People's Bank of China, and the information guaranteed for others will of course be reflected in that credit information report.

Considering the risk, the general financial institutions will not agree to the person who has already provided the guarantee to guarantee again. And at present, most of them are mortgage loans, and few banks will make secured loans. However, in order to explore the rural market, it is also possible for the postal service to issue small secured loans. As long as that person has enough credibility and guarantee ability, it is not impossible for postal service to guarantee a second person.