1 Used oil regeneration system 2 Stainless steel filters. Automatic reverse-washing system. Two main ... engine oil, gasoline engine oil, and used hydraulic oil, other used lubrication oil of machinery.Used oil regeneration system can effectively remove ... the scent rapidly. ========oil recycling,oil regeneration,oil refining,used oil reclamation,black oil refinery,oil decolor,oil dehydration,machine ...