If the factory gate is facing the downward stairs, it is a kind of "losing money bureau" in geomantic omen, and it also comes from the traditional concept of "taking water as wealth", because if there is water transport in front of the factory gate, it will flow away, so the simplest solution is to put a pot of big-leaf soil plants at the door to avoid the loss of "water".
2. The factory gate should not face the corridor or passage.
In feng shui, this situation is called "stabbing the heart like a knife", so it is unlucky. The rapid airflow, dust and noise generated by people passing through the corridor will "rush" into the house from the door facing the corridor. The traditional solution is to add a threshold under the door, or to set a porch at the position facing the door in the house.