Shenzhen Company : Shenzhen Guanweida Electronic Technology Co., Ltd. 

Contact: Lois Dai

Whatsapp: +86 15915357164

E-mail: lois@gwdscreen.com

Address: A block , Jiahe building ,Futian Distric,Shenzhen 

Hongkong Company : HK Guanweida Technology Limited

Contact: Linlin

Whatsapp: +86 18123656967

E-mail: gwd@gwdscreen.com

Address: World Trade Square, 21 On Lok Mun Street, Fanling, HK