Description of graphite packing carbon fiber reinforced mechanical seal burgmann teflon packing: Graphite packing carbon fiber reinforced mechanical seal burgmann teflon packing is made of carbonized poly arcylonitrile fiber and fininshed with ptfe dispersion and lubricant. Graphite packing carbon fiber reinforced mechanical seal burgmann teflon packing is inert to almost all corrosive chemicals. It covers wide range of application, relatively economical among nonasbestos packing.