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
Room 1712, Building 4, Huijiangting, Sanjiang Stereoscopic City, Sanjiang Street, Yongjia County, Wenzhou City, Zhejiang Province, Wenzhou, Zhejiang, China