Sinu Marine Hydraulic Tech-Design | Manufacture | Stock | Repair | Supply. Spare parts for hatch covers opening, cranes lifting, winches turning, windlass ect. Engineers working, warehouse shelves stocked, CNC machines operating, one team, total support. Since 2007, Sinu Marine has been the global partner marine operators trust. Our strong point is that we deliver what others can’t: “You Need It? We Create It. ” Full in-house design & development capability for bespoke solutions. We specialize only in marine hydraulics: hydraulic cylinder/valve/motor/pump/hose ect. Our team: Fast Response.