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Netherlands () The world's largest floating crane ship is Thialf, a 201.6 m (661.4 ft) long semi-submersible barge with a lifting capacity of 14,200 tonnes (31.3 million lb). Thialf is operated by Heerema Marine Contractors of the Netherlands.
In 2009, the largest builder of semi-submersible drilling rigs, reached their dreams by christening of the worldâs first fixed dual-beam gantry crane with the enormous lifting capacity at 20,000 MT.