Every floor has it. According to official website of Nanjing University of Science and Technology, for the convenience of students and teachers, every floor of the library is equipped with toilets. Nanjing University of Science and Technology, referred to as "South Institute of Technology", is located in Nanjing, Jiangsu Province. It is a national key university directly under the Ministry of Industry and Information Technology and jointly established by the Ministry of Industry and Information Technology, the Ministry of Education and the People's Government of Jiangsu Province.