Headquarters 

Shenzhen Chang Universal Electronics Co., Ltd.

RM 2604, Block A, Xingzhan Square, South Ring Road, Shajing

Street, Bao'an District, Shenzhen 518125, PR. CHINA

Tel: +86-755-27233339

Contact：Mary

Mob: +86137 8832 5233

Email:  info@pcbpresspad.

            ywb4@szhycdz.com

Production Base/Factory

Henan Huanyuchang Electronics Technology Co., Limited

Runan Industrial Park, Runan County,  Zhumadian City, Henan Province, PR. CHINA