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
Room 1207, Building 2-1, Aochen Guanyicheng, No. 266 Guanping Road, Songyuanxia Community, Guanhu Street, Longhua District, Shenzhen, Guangdong, China