The most important thing is to check your credit information (personal credit), followed by your financial resources (repayment ability) and work (continuous repayment ability); for credit information, go to the central bank to check. Financial resources depend on your salary details and social security amount. The real estate certificate is also one of the financial resources. Your work will call your company and ask anyone who answers the phone to find you to confirm whether you work here. Of course, if you have social security If you have the information, most of the time this step will be omitted; generally they won't call your home, the most they will do is confirm whether the call was given by mistake. It will take more than a week for all verifications to be completed, and then it will be sent to you in about another week.