nsh ger gas engine oil (oil treatment, oil filtration, oil purification, oil recycling, oil filter, oil restoration, oil regeneration, oil filtering, oil reclamation) system is particularly suitable to regenerate internal-combustion engine oil including diesel engine oil, gasoline engine oil and internal-combustion engine oils. ger series can effectively remove colloid, oxid, acid, pitch, particles, impurities, water, gas in the oil. specially, ger can restore the color of used internal-combustion engine oil and remove the scent rapidly. insulation oil series, vfd double-stage high-efficiency vacuum insulation oil purifier, vfd-a double-stage vacuum insulation oil automation purifier , vfd-r double-stage vacuum insulation oil regeneration purifier, vfd-t double-stage vacuum insulation oil purifier with tester, turbine oil series tf turbine oil purifier , tf-a turbine oil automation purifier, tf-r turbine oil regeneration purifier , lubrication oil series lv lubrication oil purifier, lv-a lubrication oil automation purifier , lv-r lubrication oil regeneration purifier, gas engine oil regeneration system