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
5/F Building a, Furong Road No. 21, Gu Shu Village, Xixiang Town, Bao'an District, Shen Zhen City, Guang Dong Province, Shenzhen, Guangdong, China