They are intended for lubrication of machine equipment, characterised at least by a single engine-driven moving unit, machines, machine units and technologies. The range of industrial oils includes bearing, turbine, hydraulic, industrial transmission, and compressor oils, including oils designed for lubrication of guiding surfaces of metal-working machines and multi-functional oils intended for filling transmissions and hydraulic systems of metal-working machines. In contrast, thanks to their insulation and smoothing properties, electrical insulation oils are used as a filling to transformers, switches and power capacitors.