A visit — yours or an inspector's — is the surest check on a new supplier. Send a date and what you want to see; the request reaches them as an enquiry you can track.
Nearest Port
Tianjin Port, Qingdao Port
Address
18th Floor, Block 12, Liaocheng International Financial Center, Dongchang East Road, Liaocheng, Shandong, China, 252000