It is made by blending refined mineral oil and refined high viscosity base oil with functional additives. It has good wear resistance, suitable viscosity, good temperature resistance, excellent oxidation stability and good rust resistance. 

According to the center value of kinematic viscosity at 40℃, it can be divided into 32, 46, 68, 100 and 150 grades. 

Mainly used in heavy load, medium pressure, high pressure vane pump, embolism pump and gear pump hydraulic system, can also be used in medium pressure, high pressure construction machinery and equipment hydraulic system.