The functions of medium for hydraulic
It’s very important to transfer the energy of medium on the hydraulic system. In the meantime, we thank to get some working as follow：
(1)Lubricate the parts, down wears and frictions.
(2)Transfer the sign and energy.
(3)Resisted to become rusty and abstract heat.
(4)Separated and transfer and precipitate the non-soluble pollutant.
(5)Filled in the space friction for parts to parts.


Attention to performance for the medium of hydraulic as follow
(1)Viscosity：Will to lead the temperature, efficiency and operated to no good when the viscosity too much or too low .  
(2)Antifriction：It’s major to fill some additive in the surface to became
    some velum for lubricate and less some wear.
(3)Antioxidative：It’s a material to resist of oxygenous, especially
    together with air but still unaffected forever.
(4)Thermostability：To resist the chemical reaction and lysis.
(5)Anti-emulsibility：Stop the oil combine with water to cause emulsify.
(6)Anti-hydrolyze：Stop the oil combine with water to cause chemistry.
(7)Make defoam：Stop the oil to form some foam and quickly disappear.
(8)Rust prevention.
(9)Anti-shearing：To resist the shearing and maintain the original
    viscosity.
(10)Material Compatibility：The hydraulic of medium with others material
   don’t happen to lose and no influence the functions that we say it  is       compatibility.