The materials provided are incomplete. According to the inquiry of official website of China Construction Bank, the pre-approval of decoration loan of China Construction Bank is usually a preliminary examination, and whether a second examination is needed depends on the specific situation. If your information and application meet the requirements of the bank, you generally don't need a second approval after the initial approval. However, if the information you provide is incomplete and untrue, or the bank needs to further check your credit history and other information, you may be required to conduct a second examination and approval. I suggest you consult the loan department of China Construction Bank or relevant customer service personnel to obtain more accurate information.