Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online.The T-72Z is a highly modernized version of the T-55, the upgrades have been done by the Defense Industries Organization of Iran. The name Safir-74 is used to refer to the Iranian T-54 tanks which have gone threw the same upgraedes, while Type T-72z is used to refer to Iran''s Type 59 tanks which have gone threw this upgrade. This tank should not be confused with the Russian T-72.Mounting a new armament system consisting of 105mm barrel gun model M68 with a long operational life, effective range, precision, high firing power and simple replacement without removal of the turret. Slovenian Fontana Electronic Fire Control System (EFCS-3).