Excuse me, is the building manager a builder (foreman)? What is the relationship with the hydropower builder (hydropower foreman)?

Setting the building number is the scope of responsibility, which is basically a building. The scope of responsibilities is very wide, such as reinforcement, formwork, concrete, mud and so on. If fully staffed, the foreman in the building is in his charge. But it is generally within the scope of civil engineering.

The foreman of water and electricity is also the long-term manager of the building number. But it's not clear yet.

The building number is long, generally for civil use.