Install the elevator and complain to the Justice Bureau.

First of all, I don't know what government department this "key bureau" is, because as far as elevators are concerned, elevators are usually special equipment, and the supervision department of special equipment is the Market Supervision Bureau (formerly the Quality Supervision Bureau), so if there is any problem with elevator safety, you can complain to the local market supervision bureau by telephone. Secondly, if you complain about elevator safety to the market supervision bureau, you must make it clear as far as possible what the problem is, such as the elevator maintenance unit is not in place (for example, there is no normal maintenance for half a month, the maintenance time is particularly short, the elevator frequently fails without reporting the specific reasons to the owner, the elevator emergency maintenance record is incomplete, and even it is not on the scene for a long time after receiving the alarm from the trapped person). Or elevator users (usually property companies) fail to perform their responsibilities (there are no regular inspection records, elevator data files are missing, elevator safety management personnel are not equipped, elevator maintenance records are incomplete, management system is missing, employee safety training is not carried out, and emergency drills are not carried out), which can be used as the reasons for complaints. If the above maintenance units and property companies fail to do so, the market supervision department can punish them, generally 30,000 to 300,000. Again, I just noticed that you are not the owner, but the property management company, so I want to mention here that the elevator property right is usually owned by all the owners (if you move back to the community, it may also be owned by the local government or the city investment company), but the special equipment use registration is not the property right registration. Note that registration is used. The Detailed Rules for the Administration of the Use of Special Equipment stipulates that special equipment with property rights, such as elevators, shall be commissioned by the property rights unit. Is the use of the elevator unit, responsible for the use of the elevator safety, that is to say, the elevator accident, the property company is the main responsibility unit, is the first responsibility unit, which is often said that the main responsibility for safety (emphasize, the main responsibility) is implemented by the elevator use unit. In other words, the car brakes always fail, which will lead to rear-end collision one day, and the user of the car, that is, the owner, will bear the main responsibility. Therefore, if there is a problem with elevator safety, you can also complain to the local Housing and Construction Bureau about the inaction of the property company. Even if the maintenance unit is not in place, it is because of the lack of main responsibility of the property company and the failure to supervise the maintenance unit to maintain the elevator, which is also one of the manifestations of the property company's inadequate work. Finally, the owners often complain that "the elevator is always broken and can't be repaired", which is a bit like saying "I'm always in poor health, what's wrong" when seeing a doctor, but if we say simple symptoms such as "recent cough, headache and runny nose", can the doctor follow the cause of the cold? Besides, the elevator is always broken. There are too many possible reasons for a word "broken". Any link in manufacturing, installation, maintenance and use may go wrong. I believe that people who have been in the elevator industry for several years know that the most common fault of elevators is in the use link, that is, unsafe and uncivilized elevator riding behavior is one of the important reasons for elevator faults. It is also the responsibility of the property management company to persuade the owners to take the ladder in a civilized and safe way.