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
Building 32, Wanyang Zhongchuang City, No. 696 Binhai 5th Road, Wenzhou Economic and Technological Development Zone, Zhejiang Province, Wenzhou, Zhejiang, China