in case of overdue downtime, it is generally recovered within 24 hours after payment, basically within 24 hours. It is recommended that you change your mobile phone number or get it again the next day.

turning danger into safety is a safety education software specially designed for people engaged in chemical industry. The safety courses in the app involve all aspects of safety hazards in the chemical industry. Chemical workers should firmly remember these safety knowledge points and always pay attention to safety protection.