... device- ZJD series are suitable especially for purifying and restoring hydraulic oil, machine oil, gear oil, coolant oil and ... and other enterprises. It can purify mechanical oil, refrigerator oil, hydraulic oil, quenching oil, steamer oil, diesel engine oil, wheel ... fit to high viscosity lubricant oil, freezing machine oil, hydraulic oil and gear oil etc.Guarantees & Documentation:TONGRUI Warrant ...