... LV sieres: Lubrication Oil Purifier Series GER sieres: Used Engine Oil Regeneration System VFD series: Insulation oil ... diesel engine oil, gasoline engine oil, and used hydraulic oil, other used lubrication oil of machinery. TF series: ... refinery, dehydration, renovation, restoration, renewal, recondition, purification, filtration, used oil, black oil, engine oil, lubrication oil, lube, waste oil ...