That depends on what level of welder's book you have. About 300 junior books, about 500 intermediate books and about 500 advanced books are all authentic books issued by the Labor Bureau. The welding operation certificate is also around 500, which was issued by the Security Bureau. The pressure vessel certificate is too expensive, the minimum is 4000, and each item will not exceed 800 in the future. The certificate was issued by the Technical Supervision Bureau.

Most false certificates 100.

If it's true, I can do it for you, and so can fake advertisements on the street. Wjk0828@ 163.com is my email address. You can contact me.