What certificate does the property maintenance electrician use?

Property maintenance electrician holds low-voltage electrician operation certificate, as shown in figure:

Issuer and enquiry website:

After passing the training and examination, the State Administration of Work Safety will issue the corresponding operation certificate, which will be inquired in official website. The certificate is reviewed once every three years and renewed once every six years. It can be reviewed and renewed all over the country and is common throughout the country.