thialf submersible crane ship in the port of rotterdam

blue boat cargo construction crane derrick drilling energy engineering equipment exploration floating freight fuel gas harbor harbour heavy industrial industry lifting machinery maintenance maritime nautical vessel ocean offshore oil petroleum platform port power production rig sea semi semisubmersible ship shipping sky station submersible subsea technology tower transport transportation water thialf rotterdam semi-submersible vessel built 1985 mcdermott barge 102 mitsui shipbuilding japan landtong van rozenburg