address: Apt 1708,17th floor,noor_E_Tehran trade center, Vali_E_Asr Ave. tel:+98(21)88226991-3 Fax: +98)21)88226994 Web: www.tivanco.com/Email: info@tivanco.com Managing Director: M.Tabatabae Chairman Of the board: Eng. Esmaeil Sattari