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
4th Floor, Building B, Xixiang Haoye Industrial Zone, No. 162, Fengtang Avenue, Fuhai Sub-District, Bao 'an District, Shenzhen City, Shenzhen, Guangdong, China