A hard disk drive system that includes one or more rotating data storage platters, a drive controller and multiple actuator assemblies and corresponding respective readwrite heads. A base is added at various positions downstream of the quench section of an ethylene oxide absorber. The device has a workstation for assembling the successive parts of an offshore pipeline with the workstation attached to the vessel independently of the tower and is displaceable along the vessel to assemble the successive parts of the pipeline.