... inertia, dimensional stability, low frictio It is a braided packing made of pure PTFE thin yarns fiber, almost complete chemical ... , and excellent. Resistance to compression are qualities classifying this packing among the best ones available in the industrial field. It ... speed, rods, pistons valve stems, expansion joints, etc. The packing impregnated with PTFE are also available .Spec: 3.0mm - 50mm ...