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
Tianjin Port, Guangzhou Port, Shenzhen Port
Address
Room 2663, Zero Distance Service Station, 1st Floor, Yuyuan Community, Building 1, No. 2 Minsheng Road, Panggezhuang Town, Daxing District, Beijing, 102600