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
1st Floor, Building A1, Changrui Industrial Park, No. 55 Pinsun Road, Longhua District, Shenzhen, Guangdong, China, 518110