1, WeChat search "China Construction Bank", pay attention to and enter the micro-loan in the official account of WeChat;
2. After entering, select "Microfinance" in the menu bar and click "Account/Integral Inquiry";
3. WeChat official account will send you feedback information, find "query bank" in the feedback information, and reply to the number corresponding to "query bank".
4. The official account of WeChat will send all the inquired results to him, and then he can see the joint line number.