What do you mean, the beam should be turned on?

First of all, the upper beam refers to the installation of the middle beam in the house, which mainly refers to the process of installing the highest middle beam on the roof of the building.

Among them, the middle beam represents the tranquility of the whole house itself, and it plays the role of a long pillar of a family.

Therefore, the appropriate upper beam refers to the middle beam suitable for installing houses.