Which certificate in Qingdao has higher gold content (higher salary makes it easier to find a job), which is a document, a foreign trade document or a customs declaration and inspection certificate?

In fact, I think these certificates are just a stepping stone. I passed the witness exam, and the salary will not be very high. In Qingdao, it is usually two or three thousand months, and there will be no growth. My classmate took the foreign trade documentary. In fact, it is basically the same as a merchandiser, and the salary is similar. These two are easier to test. What is more difficult to test is customs declaration and inspection. If you want to engage in customs declaration and inspection, you must take these two certificates, because this is a qualification certificate, and you can do related work only after you get the certificate.