I can't. Two catering companies can't * * use a delivery elevator. The delivery elevator should be installed in the back kitchen of the restaurant and as close as possible to the door of the restaurant. The two catering companies have different kitchen positions, so it is not suitable for * * * to use the delivery elevator, which may reduce the delivery efficiency. Precautions for vegetable elevator: Smoking and inflammable and explosive articles are prohibited in the elevator. Passengers should stand outside the yellow line and don't leave debris in the car.