Welder certificates, like other types of certificates, are uniformly printed by the Ministry of Labor and Social Security. Vocational qualification certificates are divided into five grades: primary (national vocational qualification level 5), intermediate (national vocational qualification level 4), advanced (national vocational qualification level 3), technician (national vocational qualification level 2) and senior technician (national vocational qualification level 1).

The welder's grade must pass the study and examination. It must pass a professional college. Now many training points (schools) have welder training. The higher the level (bureau level, municipal level, ministerial level, provincial level), the more difficult the certificate is.

You have to have a primary certificate (operation certificate) first-as long as you can operate.

After two years, I will read (take an examination of) the intermediate certificate-learning welding theory and welding skills.

Re-reading after two or three years-learning the welding principle

After two or three years, I will take an examination of technicians-learn welding and invention, and write papers. Experts will appraise your study (thesis) and practical operation.