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
Address
3/F, Building 1, Xinyuan Industrial Zone, Shangwei Park, Guxing Community, Xixiang Street, Bao'an District, 518126 Shenzhen, Shenzhen, Guangdong, China, 518000