The certificate of the post-employment reform office of the People's Social Security Bureau is the most widely used in China. The professional title certificate of any profession and any region is universal throughout the country. This is national unity, not the privilege of a certain region.
The unit certificate means that some large enterprises have the right of independent evaluation and do not have to go to the Human Resources and Social Security Bureau to submit papers for evaluation. Companies can put forward different requirements for applying for intermediate titles according to their own requirements. At the same time, the issuing unit must be the seal of your company.