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
Beijing, Tianjin
Address
Room 111, Building 3, No. 27 Yongwang Road, Daxing Biomedical Industry Base, Zhongguancun Science and Technology Park, Daxing District, Beijing, 102600