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
3rd Floor, No. 2 Factory Building, Lijincheng Industrial Park, Yousong Community, Longhua Street, Longhua District, Shenzhen, Guangdong, China