Expanded PTFE valve-stem packing is a pliable, self-lubricating packing. Expanded PTFE valve-stem packing eliminates stem wear and lasts indefinitely. Expanded PTFE valve-stem packing is continuous-length packing.Expanded PTFE valve-stem packing is installed easily. And expanded PTFE valve-stem packing can be formed into a cohesive cylinder when compressed.Expanded PTFE valve-stem packing eliminate the need of cutting and form rings.Expanded PTFE valve-stem packing has wide range of applications.Expanded PTFE valve-stem packing is used to fill flaws and irregularities.Expanded PTFE valve-stem packing has long service time.So the use of Expanded PTFE valve-stem packing can reduce inventory.