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/F-1, Bldg. 2, Row 2, South of Zhongka Kart Club, Fuheng West Road, Henglan Town, Zhongshan City, Cn, Zhongshan, Guangdong, China