Comprehensive service hall of information technology center. Yanshan University, located in Qinhuangdao City, Hebei Province, is a national key university approved by the People's Government of Hebei Province, the Ministry of Education, the Ministry of Industry and Information Technology and the State Bureau of Science, Technology and Industry for National Defense. In the comprehensive service hall of the Information Technology Center of Yanshan University, according to the relevant regulations of the library, anyone entering or leaving the library must bring and show his campus card, student ID card and other valid documents or certificates, otherwise he may not enter the library to go through the formalities of replacement.