
Nantong Rainbow Offshore & Engineering Equipments designs and builds offshore engineering equipment and vessels, supported by large-scale workshops, slipways, and heavy-lift gantry cranes.
Nantong Rainbow Offshore & Engineering Equipments Co., Ltd. (ROC) focuses on the design, manufacturing, and construction of offshore engineering equipment and offshore vessels, including offshore wind power installation platforms and offshore wind power steel structures.
As a subsidiary of Jiangsu Rainbow Heavy Industries Co., Ltd. (RHI), ROC operates in the Qidong offshore vessel industrial zone. The site includes extensive production and assembly areas, multi-functional indoor building slipways equipped with two 300T SWL gantry cranes, and dedicated spaces for equipment installation.
With an outfitting and mooring test berth designed for mooring up to 50,000 DWT ships, ROC supports end-to-end project execution from fabrication and assembly through outfitting and testing. The company is committed to providing integrated solutions for offshore industries.

Multi-functional indoor building slipways support efficient construction workflows and are equipped with two 300T SWL gantry cranes for heavy lifting.
ROC delivers integrated solutions for offshore industries by combining design, manufacturing, construction, outfitting, and mooring test capabilities within one operating base.
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