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, Heilongjiang
Address
Room 704, 7/F., Tower a, New Mandarin Plaza, 14 Science Museum Road, Tst East, Kowloon, Hong Kong, Weifang, Shandong, China