City  Yerevan  Name of enterprise  "LT-PIRKAL"  Activity fields  Manufacture of crystals for products of quantum electronics  Telephones to contact  (3741) 522318  Fax  542734  Mail address  21 Shoproni St., Yerevan-90, Armenia  IIN  000000000000  Additional information  http://www.spyur.am/ltp.htm  Net communication  send the mail >>>