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.
Address
Rm 1506-C07 Block 3, No. 182 Haier Rd, Qingdao China 266061, No. 285 Jimo First-Class Rd, Jimo District Qingdao China. 266200, Qingdao, Shandong, China