AT203L1This packing is made of imported asbestos that is processed by hightemperature lubricant, graphite lubricant and passive agent. Eachasbestos yarn is individually reinforced with inconel wire. Suggested touse at high temperature and high pressure valves. AT203L2For middle pressure applications, the economic style asbestos packingreinforced with inconel wire and with graphite only at outside can beselected.