How to inquire about the post certificates of national property management practitioners

Can't find it online, only go to the issuing unit of the certificate;

But, I remind you, there is no need to ask. It is understood that there is no false certificate in this field in the market at present, because the cost of handling false certificates is many times higher than that of real certificates, and the market for false certificates is not large, and no one provides them at all.

Not all certificates are false, and many certificates are not false at all. Imagine, will the company that rarely handles fake certificates make samples? The cost of making a sample is far from the cost of making a false certificate.