Related basic knowledge * * * Written test subjects: materials, welding, other test methods, etc. B 1 (closed volume), relevant standards, etc. A 1 (open book);

Specialized courses: textbook B2 (closed book) and test standard A2 (open book);

Oral examination;

Actual operation;

You need to prepare a technical summary of your job in advance.

Now it seems that the pass rate is not very high. Please work hard and wish you a happy life.