How do contract nurses belong to enterprises?

Contract nurses are supernumerary personnel and belong to enterprises. According to relevant public information, the recruitment of nurses in public institutions is a contract system, not a staff member, but a public institution. Contract nurses are nurses who sign labor contracts with hospitals. According to the State Council Guofa (1986) No.77 document and the State Council Order No.99, the employer signs fixed-term labor contracts, non-fixed-term labor contracts and labor contracts with the completion of a job as the term.