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.
Address
Add 1: Gaowang Road 83th Andong Cixi City Zhejiang China / Add 2: Jiangnan Industrial Area Andong Hangzhoubay District Ningbo China, Ningbo, Zhejiang, China