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. 2 of South Xinxi 2nd Road, Industrial Ave., Lunjiao Jiyue Industrial Area, Lunjiao Xichong Village Committee, Shunde Dist., Foshan, Guangdong, China