I. Definition:
it is a kind of packing made of graphite PTFE wire which is made of PTFE fiber with graphite powder and certain thermostable lubricant.

II. Features: 
1. low coefficient of friction: the packing has well stability and ling service life
2. The packing has well heat conductivity and tensile strength
3. The packing has excellent self-lubrication: it will not damage the axostyle.

Function: 
usually, it is applied in the dynamic sealed part with a high linear velocity（16 M/S） and it is used in sealing alkali, solvent, water, steam pump and so on.

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