How do individuals handle European business inspections and travel?

Let me give you an unofficial and authoritative answer:)

First of all, you need an invitation letter. Business invitation letters issued by small Chinese companies have basically no chance of success.

The so-called visiting friend visa issued by a friend has a very small chance of success, basically impossible.

For private tours, there is no need to join a group and you cannot leave the group.

It is possible but very troublesome. If you know someone reliable here, you can send me a text message and I will tell you in detail, otherwise I will not waste my time here.

If you don’t know anyone reliable and want to travel on business, I can tell you that it’s impossible. Anyone who tells you it works is lying to you. If you believe me, don't go to them. If you wait a little longer, it might become more open. It still seems very troublesome at the moment.