... engines or turbines, Lubrication oil cooling, Recooling of circulated water for cooling cylinders, pistons, injection nozzles, Cooling of ... oil and heavy fuel oil, Preheating of seawater for fresh water production, Heat recovery, Heat exchange to air-condition the ... Steel (SUS304.316 Etc)Pure Water, Normal Water, Oil for eating, Mineral OilTi, Ti-pdSea Water, Saline Water, Mineral Water20Cr, 18Ni, 6Mo ...