How to contact us    
Add: No.125, Daxi St., Tiexi, Anshan, Liaoning, P.R. China 114011
Contact person: Victor Ma 
Phone:  +86-412-8410071
Fax:
 +86-412-8410350
Email: 
 assf@mail.asptt.ln.cn ; victor@hv-diode.com
Website:

http://www.hv-diode.com