Heilongjiang Garden Maintenance ProductsDistribution of hydraulic oil, hydraulic oil is the hydraulic medium used in hydraulic systems that utilizes hydraulic pressure energy. It plays a role in energy transfer, anti-wear, system lubrication, corrosion prevention, rust prevention, cooling, and other functions in hydraulic systems. For hydraulic oil, the first requirement is to meet the viscosity requirements of the hydraulic device at both working and starting temperatures. As the viscosity changes of lubricating oil are directly related to hydraulic action, transmission efficiency, and transmission accuracy, it is also necessary to ensure that the viscosity temperature performance and shear stability of the oil meet the various needs of different applications. There are various types of hydraulic oil in Heilongjiang, with different classification methods. For a long time, it has been customary to classify them based on their use, as well as based on the type of oil, chemical composition, or flammability. These classification methods only reflect the earned injection of oil products, but lack systematicity and are difficult to understand the interrelationships and development among oil products.