Teacher qualification certificate is only a qualification to be a teacher, and has nothing to do with the establishment of the school. If you want to be a teacher, you must go to the school for an interview. Only when you are hired does it involve the question of whether you have an establishment or not.
On the establishment of graduates in normal universities
Normal undergraduate graduates have a teacher qualification certificate. If they have graduated to teach in a school now, you can ask if there are any staff in the personnel department of the school. If it is compiled, there is no need to take the exam. If it is not in the establishment, it can only be counted as external employment, and there is no guarantee. Therefore, suggestions must be tested and compiled to be reliable. If you don't teach in the school after graduating from normal school, you must take the entrance examination before you can prepare formally, so that you can stay in the school safely.