What is the general content of the welder's license?

The welder's license is mainly examined practical + theory, that is, about the knowledge of the welder, you can buy relevant books to review. \x0d\Welder's certificate: melting welding and thermal cutting operations (electric welding, gas welding, arc welding, electric welding gas cutting, other), also known as the induction certificate, the issuing body ---- Safety Production Supervision Administration, the induction of the necessary certificates, no certificate does not work with the work, divided into melting welding and thermal cutting operations, pressure welding operations, brazing operations, certificates with a magnetic card, the national universal. \x0d\\, also known as the vocational qualification level certificate, the issuing body - Labor Bureau, is the promotion, salary increase, title by virtue of the review of the necessary certificates, senior than the junior high school level wages 200-500, divided into craftsmen and technicians, *** 5 levels, the certificate is common throughout the country. \x0d\\\\\x0d\\\\condition for enrollment\x0d\intermediate vocational qualification certificate application\x0d\1.18 years of age or older, less than 55 years of age\x0d\2.\x0d\2.\condition for enrollment\x0d\conditions for enrollment\x0d\intermediate vocational qualification certificate application\x0d\1.\x0d\2. \x0d\3. Possess an on-job operation certificate for this trade (this condition is only required for certain trades) \x0d\Intermediate vocational qualification certificate application (one of the following conditions can be fulfilled) \x0d\1. Possess an on-job operation certificate for the same trade (this condition is only required for certain trades) \x0d\2. Possess an entry-level certificate for the same trade \x0d\Senior level vocational qualification certificate application\\ x0d\1.Have an on-the-job license for the same type of work (only required for certain types of work) \x0d\2.Have an intermediate certificate for the same type of work \x0d\\