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 401, 4th floor, 1th plant building, No.12 Qiaoshan Village, Jinlong Road, Shiji Town, Panyu District, Guangzhou,Guangdong Province,P.R of China