Multipurpose Floating Dock, CV. Randoan is an HDPE product, which is rust resistant, both in sea water and fresh water. This versatile floating dock lasts up to 9-10 years. Installation and assembly of the multi-purpose floating dock does not take long, it is very dynamic and easy to set up. The use of floating cubes in the tourism sector as docks and water activity centers in the middle of the water. The use of cage nets in fish cultivation, both freshwater and seawater, is also very efficient.