... , Cooling of Baoder oil, compressor oil and other lubricants, Preheating of lubrication oil and heavy fuel oil, Preheating of seawater for fresh water production, Heat ... Liquid KindsStainless Steel (SUS304.316 Etc)Pure Water, Normal Water, Oil for eating, Mineral OilTi, Ti-pdSea Water, Saline Water, Mineral Water20Cr ...