VisualTech AV Engineering Limited
 
Unit 1402, 14/F., Treasure Centre, 42 Hung To Road, Kwun Tong, Kowloon, Hong Kong
   
 
Tel : (852) 3427 3510
  Fax : (852) 3427 3371
   
  Web Site : www.visualtech.com.hk
 
E-mail : info@visualtech.com.hk