On the last day of the competition, Amir Zare from Iran lost to his American rival Mason Parris in the 125kg final match and won a silver medal.
Iran’s Abbasali Foroutan in the 97kg and Amirhossein Maghsoudi in the 61kg finals had won two gold medals on Tuesday.
Mohmmadsadegh Firouzpour also won a bronze medal in the 70kg.
Russia topped the podium with 168 points, followed by USA (120 points) and Iran (119 points).
The competition was held in Tallinn, Estonia.