Ningbo electronic documents backup center is a subordinate institution of the Ningbo archives. Its main responsibilities are: receiving and keeping relevant electronic documents and materials, and providing inquiry services as required; keeping and managing the backup data of relevant files and electronic documents, as well as the backup of remote file data between archives inside and outside the city; undertaking the digital processing and filing of the traditional carrier files in the collection of the municipal archives The construction and management of case database; the maintenance and management of electronic document management software, hardware and network environment, and the information support of archives management and e-government construction for the municipal archives; other tasks assigned by the municipal archives. Person in charge: Yu Zhaoli. Tel.: (0574) 89185417, email: yzl@nbdaj.gov.cn 。