Is Shenzhen subway station management outsourced?

Shenzhen subway station services are outsourced. The salary of Shenzhen subway station attendants is basically 3,500. They are basically from labor dispatch outsourcing companies. They can't recruit people every day, and the work is really tiring. They go to work from 7 am to 10 pm, and they have to stand for ten hours a day. , and what I mentioned earlier is during working hours, and I have to get up at almost 5 o'clock in advance. When I arrive at the dormitory at night, it is almost 12 o'clock, and there is no time to sleep. The turnover of personnel is extremely high.