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
No. 209-505, 2nd Floor, Building 3, Jiashunyuan Community, No. 465 Kanyun Road, Meixi Lake Street, Yuelu District, Changsha, Hunan, China