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
4-5th Floor, Building 3, Huangzhou Industrial Zone, No. 1 Ruihua Road, Tianyuan Street, Tianhe District, Post Code: 510655, Guangzhou, Guangdong, China