What do the engineering specialists of Hui Jin Property usually do?

In the eyes of many people, the job of a property engineer is trivial work such as tinkering and installing light bulbs, but it is far more than that. For example, in places such as squares/gardens/home paths, stone pavements, wooden plank roads, faucets in public areas ... there are problems with playground facilities, and the lights in the underground garage are not on. Where there is a need, there is an engineer to maintain it.