Floating crane barges PC-7, Peldosais Celtnis 21 and "GRANITS" at Riga at the shitty Volery terminal at Riga - 05.07.2019
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GRANITS (on the right)
IMO 8931671
MMSI -
originally "Taran", design D-9021, yard number 1903, built in 1982 at Obuda, Hungary
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PELDOSAIS CELTNIS 21 (middle), design D-9012/9050
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PC-7, the one on the left, design 721
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Many thanks for all your support!

Dmitriy identifyied the crane on the right as "GRANIT":

"storm1379" added in the comments this information - Many thanks!:
Project 721,"GANZ" type, Built by Hungarian ship and cranebilding plant,BUDAPEST,HUNGARY;
16 t floating crane Type of vessel: full swing diesel-electric non-self-propelled floating crane. Type of crane: full swing electric clamshell. Purpose of the vessel: loading and unloading. Place of construction: Hungarian shipbuilding and crane building plant (Hungary, Budapest). Register Class: "* O" Specifications: Length overall (boom in stowed position): 43.5 m Estimated length: 32 m Width: 15.82 m Depth: 3.1 m Overall height (boom in stowed position): 9 m Displacement with cargo: 621.7 t Draft average with load: 1.45 m Empty displacement with daily reserves: 557 t Empty draft: 1.28 m Number of crew places: 8 people Autonomy: 15 days Power of the main diesel engine: 660 l. with. Main DG brand: 6NVD48 (SSED718-14 generator) Auxiliary DG power: 40 l. with. Auxiliary DG brand: DGA25-9M (diesel K-562M, generator MSK82-4)