Mohammad Aziz Naghousi of Iran defeated Russian Damir Rakhimov 2-1 in a tight match in the 77kg final.
Iran's Aliakbar Hossein Yousofi also won 2-1 against American Cohlton Michael Schultz to claim the 130kg gold.
Iranian representatives Pooya Soulat Dad Marz and Shahin Eidi Badaghi Mofrad won two bronze medals in 55kg and 63kg respectively.
The Russian Federation (97 points) has a seven-point lead over second-place Iran (90 points).