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
NingBO, QingDao
Address
Room 203, Workshop 3, Phase II, New Materials Industrial Base, No. 8 Zhixue Road, Wangyin (Sub-district), High-tech Zone, Jining City, Shandong Province