Where is Heze welder's certificate reviewed?

Heze safety production supervision and management bureau. After the welder's certificate expires, it shall be examined annually in the local safety production supervision and administration bureau. The welder's special mount guard operation certificate is issued by the safety supervision bureau and can be used anywhere. The welder's operation certificate is very similar to the ID card in appearance. It is an IC card, which can read the corresponding information with a special machine.