Hello, dear, as long as it is a welder's certificate issued by the labor skill department of this city or this region, it is recognized. This is a unified national standard, approved by the national human resources department, and then implemented in accordance with the regulations of your region. The same is true of the association. As long as the higher authorities agree with the labor and technology department, the welder's certificate will be recognized nationwide as long as it is tested in the skill department. Related information: welding and hot cutting operations (electric welding, gas welding, arc welding, electric welding, gas cutting, etc. ), also known as work permit, is issued by the emergency management department, which has the necessary certificate for work. Without the certificate, you won't work, which can be divided into fusion welding and hot cutting operations, pressure welding operations and brazing operations. The certificate has a magnetic card, which is common throughout the country. Entry requirements for primary vocational qualification certificate: 1. 1.8 years old and under 55 years old. 2. Good health, no diseases and physical defects that hinder the electrician's work, such as epilepsy, mental illness, heart disease, sudden fainting, color blindness, etc. 3. Have the post operation certificate of this type of work (only required for certain types of work) and apply for the intermediate vocational qualification certificate (only meet one of the following conditions) 1. Have the same type of work post operation certificate (only required for certain types of work) 2. Have a primary certificate of the same type of work and apply for a senior vocational qualification certificate 1. Have the same type of work post operation certificate (only required for certain types of work) 2.