Operating range of hydraulic tools and other machine tools manufacturing, sales; rope, nets, strip, wire, fire equipment, sports equipment, metal tools sales. Purpose: to efficiently purify transformer oil, insulating oil, turbine oil, lubricating oil, hydraulic oils, oil, oil, oil in the freezing water, gas and impurity particles, high-voltage electrical equipment for vacuum drying and vacuum oiling, pumping vacuum. Purification of deteriorated oil regeneration treatment, to reach the new oil indicators, restore performance.