Shenzhen Hongchen Technology Co.,Ltd. Address:Room602, Gebu North,Hongxing Village,Songgang Street,Baoan District, Shenzhen City,Guangdong Province, China. Mobile:  +86-18028715868 Skype:   starguo5 Wechat:starguo123 QQ:  316142676 Email: star@szhctechnology.com