1. Companies registered by the Industrial and Commercial Bureau, the longer the registration time, the better.

2. Training subjects, the more complete the training subjects, the better. The classrooms are separated, and each subject has a teacher.

3. Certificates are divided into local certificates and national certificates. If you use a local certificate locally, there is no problem. If you go to a big city, others won't recognize you. The certificate of Beishangguang is ok, and the certificate used nationwide is not the problem mentioned above.

You can find a training institution with good reputation online. If you have a bad reputation, everything else is empty.