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
Qingdao/Ningbo/Shanghai
Address
Shandong Qingdao Shibei District Apt. B, 22nd Floor, Yuheng Building, No. 170, Xuzhou North Road, Shibei District, Qingdao, Shandong, China