Exhibition located 1: ICE – 91 Tran Hung Dao Str., Dist Hoan Kiem, Hanoi City, Vietnam

Exhibition located 2: SECC – 799 Nguyen Van Linh Str., Dist 7, Ho Chi Minh City, Vietnam

Cellphone/Whatsapp : (84) 382028396

Email: info1@optical.com.vn