1. Applicants are required to be at least 18 years old, not exceeding the statutory retirement age of the country, such as 55 years old or 60 years old.
2. Applicants are required to have certain welding foundation or experience, or hold relevant welding certificates.
3. The applicant shall be in good health, free from diseases and physical defects that prevent him from engaging in corresponding special operations, such as epilepsy, psychosis, heart disease, sudden fainting, color blindness, etc.
4. Applicants are required to have a junior high school education or above.