What should I do if the welder's certificate is overdue and not approved? Langfang area

after consulting the skills department of the Vocational and Technical Training Center of the Labor Bureau, the welder's employment certificate is reviewed once every two years, and it needs to be renewed after two times of review. Please bring the certificate of junior high school education or above, a copy of ID card, a copy of the original welder's employment certificate, and a 2-inch photo with a blue background, and go to the Skills Department of the Vocational and Technical Training Center of the Municipal Labor and Social Security Bureau to apply for replacement.