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
Shanghai Port; Ningbo Port
Address
Room 5019, Building 1, No. 312 South Jiangling Road, Xixing Street, Binjiang District, Hangzhou, Zhejiang, China, 310051