Is there a relationship between the senior technician certificate of Tianjin Vocational and Technical Teachers College and the graduation certificate?

There is a connection between the two.

The certificate of senior technician is a certificate that workers possess and meet the knowledge and skill standards required by a certain occupation, and it is also a qualification certificate for workers to apply for jobs, take up posts and start businesses. In some cases, it is also an effective certificate for notarizing the skill level of overseas employment and foreign labor cooperation personnel.

College diploma is a kind of academic certificate, which proves that the holder has completed a certain major in higher education and reached a certain academic level. It is a stepping stone for job seekers to enter the workplace.