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
1003, Building C, Binhe Business Center, No. 8888, Xiaoqinghe North Road, Tianqiao District, Jinan City, Shandong Province, Jinan, Shandong, China
