Soviet floating cranes build in Hungary according to a CIA report dated 3 February 1955

An item reported that the 2-150 ton floating cranes built by the Hungarian Ganz shipyards along the Danube were handed over to the Soviet Union. The arm of both cranes had 3 suspension points allowing varying lifting capacities. The point at the end of the arm had a capacity of 50 tons, one further back along the arm 100 ton the third even further back the maximum 150 ton.

Source
The report was published on www.archive.org, document number CIA-RDP80-00810A005800450009-3