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
Shengli Development Zone, Xinfu District, Fushun City, Liaoning Province, Rengonghe Road, No. 9-1 Factory Buildings 1, 2, and 3, Fushun, Liaoning, China