Description： Carbon fiber packing is a carbon filament packing treated with PTFE to help prevent color contamination and carbon migration. Each strand of the carbon yarn is treated and impregnated with a PTFE suspensoid, totally encapsulating the packing to prevent carbon filaments migrating into the pumpage. We also can supply an economic type named Carbonized fiber packing , braided from shrink-proof synthetic fiber impregnated with PTFE, Silicone-oil-free. Carbonized fiber has high strength and good thermal conductivity, PTFE makes the packing have excellent self-lubrication.