... Product Description ZJD Series Lubricating Oil Purifier, Hydraulic Waste Oil Recycling Plant,Transformer Oil MachineApplication: ZJD Lubricating, Hydraulic Waste Oil Extraction Machine are ... power plant, motor factory, petrifaction, railroad and other enterprises. It can purify mechanical oil, refrigerator oil, hydraulic oil, quenching oil, steamer oil, diesel engine oil, wheel oil, insulation oil ...