According to Zhaofa's inquiry, 25 working days. It usually takes three working days from the acceptance of the application by the relevant departments to the issuance of individual industrial and commercial licenses. When a party applies for an enterprise business license, the relevant departments generally need five to twenty-five working days to accept the application and issue the license. Therefore, it takes at least 25 working days to review the door in Jiangning District, Nanjing.