Teflon tube, PTFE tube F4 F46 Tube
Feature: hard texture,high strength, not easy to damage, is not easy to age 

High temperature resistant--working temperature to 250 celcius.  High low temperature resistance--high mechanical toughness;even if the temperature drops to 196 ℃, also can keep 5% elongation.  Corrosion resistance -- to most chemicals and solvents, inert, acid alkali, water and a variety of organic solvents.  Weather - to be the best in the plastic in aging life.  High lubrication -- is the lowest in the friction coefficient in solid materials.  Don't stick --the surface tension of the solid material don't adhere to any material.  Non-toxic-- a physiological inertia, long as artificial blood vessels and organs implanted without adverse reaction.