The winning certificate of the National Vocational Skills Welding Competition lacks the seal of the Ministry of Education and can be supplemented. From the website of China Education Department, we can know that the award-winning certificate lacks the seal of the Ministry of Education. You can contact the school to issue relevant certificates, apply to the vocational skill appraisal institute and other institutions for additional printing, and submit relevant materials as required. The opening ceremony of the 2022 National Vocational Skills Welding Competition was held in Liaocheng Higher Engineering Vocational College.