Training institutions are not qualified to issue academic certificates, and all they issue are certificates of completion, which are not legally recognized. If you want to get an authoritative academic certificate, you can only get an academic certificate after being admitted to a regular university, taking relevant exams and completing your studies. Institutions like these cannot issue qualification certificates, and vocational qualification certificates are issued by the Ministry of Labor (bureau) or relevant functional departments. Intermediate and advanced ones can only be issued after being trained by a skill appraisal institution with training qualifications! I suggest you go to the vocational skill appraisal institute of colleges and universities to participate in the training of related skills and obtain the qualification certificate!