... Lubricating Oil Purifier, Hydraulic Waste Oil Recycling Plant,Transformer Oil MachineApplication: ZJD Lubricating, Hydraulic Waste Oil Extraction Machine are ... , metallurgy, spring steel factory, fertilizer factory, power plant, motor factory, petrifaction, railroad and other enterprises. ... oil etc.Guarantees & Documentation:TONGRUI Warrant the plant supplied under this specification against defects in ...