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
Workshop 2, Building 2, No. 1 Hengxing North Road, Zone C, Shishan Science and Technology Industrial Park, Shishan Town, Nanhai District, Foshan City, Foshan, Guangdong, China