The people upstairs saw clearly that it was a third party, that is, a contractor, just a contractor.
The procurement of optical fiber communication equipment is generally centralized procurement. They are all from fixed manufacturers and cannot be purchased casually. If you don’t understand the equipment or something, you can directly ask the manufacturer’s engineers. I understand, the construction of that project is simpler, just look at the progress and coordination of the construction team laying out the optical cables. I didn't know how to do it at the beginning, and the words I read were messy. It's better to ask the seniors to come faster.