Xianfeng West Road, Qingcheng District, Qingyuan City, Guangdong Province. The registered address of Chengbei Water Management Office is located in Xianfeng West Road, Qingcheng District, Qingyuan City, Guangdong Province, mainly engaged in the handling of citizen cards. Citizen card, an integrated circuit card used to handle personal social affairs and enjoy public services. Generally, it is used in social security, residents' health, public transportation, government subsidies, bank debit, tourism, library borrowing, community access control and other applications. Load, gradually expand the application of micropayment, water and electricity payment, student card, etc., and realize the application and settlement of cross-city card.