Do I need to make a circle of flat steel for equipotential bonding in the bathroom?

The grounding wire of the building itself is the ground wire of the iron wire box of the bathroom, which is connected with the ground wire of the distribution box.

The equipotential box is crimped with screws for galvanized flat iron, which is welded to the ring beam, and is connected to the earth by using the main steel bar and the total equipotential. >>>More

Inside is a metal strip connected to the electrical box grounding wire together up to the top floor down to the ground The top is connected to the lightning protection facility Conductive effect When the brick is covered, you can cover it under the brick Note It also belongs to public facilities It is best not to cut off the metal plate during construction.

Yes, the terminal box is a secondary grounding box, there's nothing wrong with it, it's fine.

This thing definitely needs to be connected.