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Hydraulic system of the basic requirements of hydraulic oil
1. The right viscosity, good viscosity-temperature characteristics. General hydraulic oil viscosity is usually 15 to 68mm2 / s between.
2. texture pure, impurity less good lubrication properties.
3. of metals and seals have good compatibility, anti-foam, anti-emulsification, anti-corrosion and rust good.
4. to heat, oxidation, hydrolysis and good shear stability.
5. volumetric expansion coefficient of small, large heat capacity.
6. hydraulic oil flow and low freezing point, flash point and high-lighted.
7. on the human body without harm, and low cost .
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