First-class builder's words can be found directly in the builder's registration query of China Builder's Network. If you enter the company name, you can find all registered builders under the company name. The competent unit of the first-class constructor is the Ministry of Construction, so the general first-class information of China constructor is updated in time and the query is more accurate.
How to prevent your builder's certificate from being linked;
First, don't take the safety B certificate, so the holder will not meet the requirements of the project manager.
Second, the contract indicates that it cannot be used for bidding, which is a precaution against gentlemen.
Of course, the B certificate unit can take the test instead, and whether it is used for bidding or not can not be solved without stamping. It's just a saying to hang a certificate without stamping it. You don't need stamps to bid. Personally, it is still linked to the unit that the holder thinks has credit. Or get on well with their salesman and let him secretly tell the holder whether the project is dead or not. In a word, it is risky to link up, and it is only a form to hang the certificate without hanging the seal! Of course, if they get the B card for the holder, the holder can get rid of certain responsibilities. The safest way is to find a company you can trust.