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
Aq2008-2009, Tianjian a-Building, No. 283 Shatai Road, Baiyun District, Guangzhou City, Guangdong Province, Guangzhou, Guangdong, China
