No.

The reason why China Construction Bank cannot use the number directly after applying for a credit card is that the credit card needs to pass the review after application, and the steps such as card production and card sending can be activated for use. The bank needs to review the applicant's information, including the applicant's credit report, income certificate, employment certificate, etc., to ensure that the applicant meets the bank's credit card application requirements. Banks need to conduct a risk assessment to determine whether the applicant has the ability to repay the loan on time and whether there is a risk of default. The bank needs to enter the applicant's information into the system and carry out steps such as card production and card sending. These steps take a certain amount of time to complete. Therefore, you need to wait for the bank to complete the above steps and successfully activate the credit card before you can use it.