Packing element prevent leakage of working fluid, external intrusion of dust and foreign matter in hydraulic pneumatic. characteristics with reliable sealing, good wear resistance, long life, withstand high pressure and temperature. our company usualy use: rubber cylinder, model " O" seal circle, model " V" seal circle, leather cup, sulfurated circle and so on; usualy material: nitrile rubber(<120℃), cyanide nitrile rubber(<180℃), viton compound(<360℃) and so on; according to different occasions and temperature regirements of different types and materials.
