Andy Hu
Phone:  86-13423880579

Email:   andy@j-optimal.com

Wechat/WhatsApp: 86-13423880579  
Skype:  andy@j-optimal.com

Address: Rm 521,Bldg#A,Zhihui Innovation Centre,Qianjin2 Rd,Bao'an District,Shenzhen,China