You can't. Safety Zhou Ka cannot replace occupational hazard notification card. Safe Zhou Ka is necessary common sense. The occupational hazard notification card is a reminder from the safety department. Safety Zhou Ka refers to the specific warning signs used to indicate the types, hazardous characteristics and disposal destination of hazardous wastes in enterprises. Units that produce industrial hazardous waste should establish a celebrity card system. Any unit that predicts the output of hazardous waste through the environmental impact assessment report shall establish a well-known card system and implement it from the date of trial production. The occupational hazard notification card is used to indicate and inform the field staff of the workplace of the occupational hazards existing here, and list the possible health hazards, physical and chemical characteristics, emergency treatment and protective measures.