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.
Nearest Port
Shenzhen Port
Address
Building D 801-804, Fengtianchuangxing Industrial Area No. 198 North Road Xue Guang, Qin Hu, Long Hua, Shenzhen, Guangdong, China, 518033