How long does it take to get the metallographic certificate?

Metallographic certificate has a very high gold content. According to the spirit of "People's Republic of China (PRC) Labor Law" and "Provisions of the Ministry of Labor and Social Security on Recruiting Skilled Workers" (Ministry Order No.6), anyone engaged in skilled workers must obtain the corresponding professional qualification certificate before taking up their posts, and the assessment of metallographic inspectors has been incorporated into the national professional qualification management system. It takes about three months to get a first-class exam.