Shenzhen Langxintong Technology Co.,Ltd.  
Contact: Ye Yongqing  
Mobile: 86 135 1098 4344  
Tel: 86 755 2788 2314  
E-mail: 935729569@qq.com  
Add: Unit507 Blk Xin He Feng Business Building 35 Bao Min 2 Road Bao An Shenzhen Guangdong China