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
101, Building A, Baodeli, No. 338 Huanguanzhong Road, Songxuan Community, Guanhu Street, Longhua District, Shenzhen, 518129