Describe：

Marine vertical fairlead, also known as a vertical roller fairlead, is a critical piece of deck equipment on ships and marine structures, facilitating the smooth guidance and control of ropes or cables. It are designed to support heavy loads, which is essential for large vessels that use thick, heavy mooring lines. They ensure the load is distributed evenly and handled effectively.They are particularly useful when dealing with high-tension operations such as towing or securing large ships.They reduce the manpower needed to handle lines manually, improving operational efficiency and safety.

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