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
Room 412, No. 4 Building, Jinghui East Road, Jiangnan University Natinal University Science Park, Xinwu District, Wuxi City, Jiangsu Province, Wuxi, Jiangsu, China