Scope of application:
　　It is applicable to grinding media such as water, seawater, various oils, solvents, weak acid, ethanol, used in the sealing for high pressure pump, valve and reaction kettle of industrial fields such as chemical fiber, fertilizer, oil extraction, ethylene, pharmacy, sugar, paper making, of power, etc.
Features:
　　This packing possesses the following characteristics as good heat conductivity, small friction coefficient, etc. especially and is applicable to the sealing for rotation position with high speed.