When can Tianjin new skill certificate be used?

About 45 days after receiving the certificate. According to the query Tianya Q&A, the skill certificate can be used in about 45 days. After the skill certificate is issued, it needs a comprehensive review, and it takes about 45 days to review and publicize. What skills certificates are there? 1. Certificate of the Ministry of Labor: human resource manager, salesman, e-commerce manager, logistics manager, property manager, manager, planner, nutritionist, secretary, project management division, psychological counselor, etc.