Closed-loop management: enterprises returning to work and production should strictly implement the responsibility of epidemic prevention and control.

It is necessary to pay more attention to management, set up epidemic prevention and control headquarters, and equip full-time staff, staff stationed in the factory, grid closed loop, nucleic acid detection, personnel investigation, isolated places, environmental disinfection, garbage disinfection, post disinfection, garbage classification, psychological counseling, employee care, antigen self-test, in-factory accommodation, transport vehicles, epidemic prevention safety, fire safety, production safety, personnel training and refined management.